diff --git a/app/api/admin/events/[id]/registrations/route.ts b/app/api/admin/events/[id]/registrations/route.ts
new file mode 100644
index 0000000..c150446
--- /dev/null
+++ b/app/api/admin/events/[id]/registrations/route.ts
@@ -0,0 +1,31 @@
+import { NextResponse } from "next/server";
+import { auth } from "@/lib/auth";
+import { eventRegistrationService } from "@/services/events/event-registration.service";
+import { Role } from "@/prisma/generated/prisma/client";
+
+export async function GET(
+  request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    const session = await auth();
+
+    if (!session?.user || session.user.role !== Role.ADMIN) {
+      return NextResponse.json({ error: "Accès refusé" }, { status: 403 });
+    }
+
+    const { id: eventId } = await params;
+    const registrations = await eventRegistrationService.getEventRegistrations(
+      eventId
+    );
+
+    return NextResponse.json(registrations);
+  } catch (error) {
+    console.error("Error fetching event registrations:", error);
+    return NextResponse.json(
+      { error: "Erreur lors de la récupération des inscrits" },
+      { status: 500 }
+    );
+  }
+}
+
diff --git a/components/admin/ChallengeManagement.tsx b/components/admin/ChallengeManagement.tsx
index d9717a4..4a2fb1b 100644
--- a/components/admin/ChallengeManagement.tsx
+++ b/components/admin/ChallengeManagement.tsx
@@ -9,7 +9,15 @@ import {
   adminCancelChallenge,
   reactivateChallenge,
 } from "@/actions/admin/challenges";
-import { Button, Card, Input, Textarea, Alert, Modal, CloseButton } from "@/components/ui";
+import {
+  Button,
+  Card,
+  Input,
+  Textarea,
+  Alert,
+  Modal,
+  CloseButton,
+} from "@/components/ui";
 import { Avatar } from "@/components/ui";
 
 interface Challenge {
@@ -441,115 +449,115 @@ export default function ChallengeManagement() {
               />
             </div>
 
-              <div className="mb-6">
-                <h3 className="text-lg font-bold text-gray-300 mb-2">
-                  {selectedChallenge.title}
-                </h3>
-                <p className="text-gray-400 mb-4">
-                  {selectedChallenge.description}
-                </p>
+            <div className="mb-6">
+              <h3 className="text-lg font-bold text-gray-300 mb-2">
+                {selectedChallenge.title}
+              </h3>
+              <p className="text-gray-400 mb-4">
+                {selectedChallenge.description}
+              </p>
 
-                <div className="flex items-center gap-4 mb-4">
-                  <div className="flex items-center gap-2">
-                    <Avatar
-                      src={selectedChallenge.challenger.avatar}
-                      username={selectedChallenge.challenger.username}
-                      size="md"
-                    />
-                    <span className="text-gray-300">
-                      {selectedChallenge.challenger.username}
-                    </span>
-                  </div>
-                  <span className="text-gray-500">VS</span>
-                  <div className="flex items-center gap-2">
-                    <Avatar
-                      src={selectedChallenge.challenged.avatar}
-                      username={selectedChallenge.challenged.username}
-                      size="md"
-                    />
-                    <span className="text-gray-300">
-                      {selectedChallenge.challenged.username}
-                    </span>
-                  </div>
+              <div className="flex items-center gap-4 mb-4">
+                <div className="flex items-center gap-2">
+                  <Avatar
+                    src={selectedChallenge.challenger.avatar}
+                    username={selectedChallenge.challenger.username}
+                    size="md"
+                  />
+                  <span className="text-gray-300">
+                    {selectedChallenge.challenger.username}
+                  </span>
+                </div>
+                <span className="text-gray-500">VS</span>
+                <div className="flex items-center gap-2">
+                  <Avatar
+                    src={selectedChallenge.challenged.avatar}
+                    username={selectedChallenge.challenged.username}
+                    size="md"
+                  />
+                  <span className="text-gray-300">
+                    {selectedChallenge.challenged.username}
+                  </span>
                 </div>
               </div>
+            </div>
 
-              <div className="mb-4">
-                <label className="block text-sm font-bold text-pixel-gold mb-2">
-                  Sélectionner le gagnant
-                </label>
-                <div className="flex gap-4">
-                  <label className="flex items-center gap-2 cursor-pointer">
-                    <input
-                      type="radio"
-                      name="winner"
-                      value={selectedChallenge.challenger.id}
-                      checked={winnerId === selectedChallenge.challenger.id}
-                      onChange={(e) => setWinnerId(e.target.value)}
-                      className="w-4 h-4"
-                    />
-                    <span className="text-gray-300">
-                      {selectedChallenge.challenger.username}
-                    </span>
-                  </label>
-                  <label className="flex items-center gap-2 cursor-pointer">
-                    <input
-                      type="radio"
-                      name="winner"
-                      value={selectedChallenge.challenged.id}
-                      checked={winnerId === selectedChallenge.challenged.id}
-                      onChange={(e) => setWinnerId(e.target.value)}
-                      className="w-4 h-4"
-                    />
-                    <span className="text-gray-300">
-                      {selectedChallenge.challenged.username}
-                    </span>
-                  </label>
-                </div>
-              </div>
-
-              <div className="mb-4">
-                <label className="block text-sm font-bold text-pixel-gold mb-2">
-                  Commentaire (optionnel)
-                </label>
-                <textarea
-                  value={adminComment}
-                  onChange={(e) => setAdminComment(e.target.value)}
-                  className="w-full p-2 bg-black/60 border border-pixel-gold/30 rounded text-gray-300"
-                  rows={3}
-                  placeholder="Commentaire pour les joueurs..."
-                />
-              </div>
-
+            <div className="mb-4">
+              <label className="block text-sm font-bold text-pixel-gold mb-2">
+                Sélectionner le gagnant
+              </label>
               <div className="flex gap-4">
-                <Button
-                  onClick={handleValidate}
-                  variant="primary"
-                  disabled={!winnerId || isPending}
-                  className="flex-1"
-                >
-                  {isPending ? "Enregistrement..." : "Confirmer le gagnant"}
-                </Button>
-                <Button
-                  onClick={handleReject}
-                  variant="secondary"
-                  disabled={isPending}
-                  className="flex-1"
-                >
-                  {isPending ? "Rejet..." : "Rejeter le défi"}
-                </Button>
-                <Button
-                  onClick={() => {
-                    setSelectedChallenge(null);
-                    setWinnerId("");
-                    setAdminComment("");
-                  }}
-                  variant="secondary"
-                  disabled={isPending}
-                >
-                  Annuler
-                </Button>
+                <label className="flex items-center gap-2 cursor-pointer">
+                  <input
+                    type="radio"
+                    name="winner"
+                    value={selectedChallenge.challenger.id}
+                    checked={winnerId === selectedChallenge.challenger.id}
+                    onChange={(e) => setWinnerId(e.target.value)}
+                    className="w-4 h-4"
+                  />
+                  <span className="text-gray-300">
+                    {selectedChallenge.challenger.username}
+                  </span>
+                </label>
+                <label className="flex items-center gap-2 cursor-pointer">
+                  <input
+                    type="radio"
+                    name="winner"
+                    value={selectedChallenge.challenged.id}
+                    checked={winnerId === selectedChallenge.challenged.id}
+                    onChange={(e) => setWinnerId(e.target.value)}
+                    className="w-4 h-4"
+                  />
+                  <span className="text-gray-300">
+                    {selectedChallenge.challenged.username}
+                  </span>
+                </label>
               </div>
+            </div>
+
+            <div className="mb-4">
+              <label className="block text-sm font-bold text-pixel-gold mb-2">
+                Commentaire (optionnel)
+              </label>
+              <textarea
+                value={adminComment}
+                onChange={(e) => setAdminComment(e.target.value)}
+                className="w-full p-2 bg-black/60 border border-pixel-gold/30 rounded text-gray-300"
+                rows={3}
+                placeholder="Commentaire pour les joueurs..."
+              />
+            </div>
+
+            <div className="flex gap-4">
+              <Button
+                onClick={handleValidate}
+                variant="primary"
+                disabled={!winnerId || isPending}
+                className="flex-1"
+              >
+                {isPending ? "Enregistrement..." : "Confirmer le gagnant"}
+              </Button>
+              <Button
+                onClick={handleReject}
+                variant="secondary"
+                disabled={isPending}
+                className="flex-1"
+              >
+                {isPending ? "Rejet..." : "Rejeter le défi"}
+              </Button>
+              <Button
+                onClick={() => {
+                  setSelectedChallenge(null);
+                  setWinnerId("");
+                  setAdminComment("");
+                }}
+                variant="secondary"
+                disabled={isPending}
+              >
+                Annuler
+              </Button>
+            </div>
           </div>
         </Modal>
       )}
@@ -582,67 +590,67 @@ export default function ChallengeManagement() {
               />
             </div>
 
-              <div className="space-y-4">
-                <Input
-                  id="edit-title"
-                  label="Titre"
-                  value={editTitle}
-                  onChange={(e) => setEditTitle(e.target.value)}
-                  required
-                  placeholder="Titre du défi"
-                />
+            <div className="space-y-4">
+              <Input
+                id="edit-title"
+                label="Titre"
+                value={editTitle}
+                onChange={(e) => setEditTitle(e.target.value)}
+                required
+                placeholder="Titre du défi"
+              />
 
-                <Textarea
-                  id="edit-description"
-                  label="Description"
-                  value={editDescription}
-                  onChange={(e) => setEditDescription(e.target.value)}
-                  required
-                  rows={4}
-                  placeholder="Description du défi"
-                />
+              <Textarea
+                id="edit-description"
+                label="Description"
+                value={editDescription}
+                onChange={(e) => setEditDescription(e.target.value)}
+                required
+                rows={4}
+                placeholder="Description du défi"
+              />
 
-                <Input
-                  id="edit-points"
-                  label="Récompense (points)"
-                  type="number"
-                  min="1"
-                  value={editPointsReward}
-                  onChange={(e) =>
-                    setEditPointsReward(parseInt(e.target.value) || 0)
+              <Input
+                id="edit-points"
+                label="Récompense (points)"
+                type="number"
+                min="1"
+                value={editPointsReward}
+                onChange={(e) =>
+                  setEditPointsReward(parseInt(e.target.value) || 0)
+                }
+                required
+                placeholder="100"
+              />
+
+              <div className="flex gap-4 pt-4">
+                <Button
+                  onClick={handleUpdate}
+                  variant="primary"
+                  disabled={
+                    isPending ||
+                    !editTitle ||
+                    !editDescription ||
+                    editPointsReward <= 0
                   }
-                  required
-                  placeholder="100"
-                />
-
-                <div className="flex gap-4 pt-4">
-                  <Button
-                    onClick={handleUpdate}
-                    variant="primary"
-                    disabled={
-                      isPending ||
-                      !editTitle ||
-                      !editDescription ||
-                      editPointsReward <= 0
-                    }
-                    className="flex-1"
-                  >
-                    {isPending ? "Mise à jour..." : "Enregistrer"}
-                  </Button>
-                  <Button
-                    onClick={() => {
-                      setEditingChallenge(null);
-                      setEditTitle("");
-                      setEditDescription("");
-                      setEditPointsReward(0);
-                    }}
-                    variant="secondary"
-                    disabled={isPending}
-                  >
-                    Annuler
-                  </Button>
-                </div>
+                  className="flex-1"
+                >
+                  {isPending ? "Mise à jour..." : "Enregistrer"}
+                </Button>
+                <Button
+                  onClick={() => {
+                    setEditingChallenge(null);
+                    setEditTitle("");
+                    setEditDescription("");
+                    setEditPointsReward(0);
+                  }}
+                  variant="secondary"
+                  disabled={isPending}
+                >
+                  Annuler
+                </Button>
               </div>
+            </div>
           </div>
         </Modal>
       )}
diff --git a/components/admin/EventManagement.tsx b/components/admin/EventManagement.tsx
index 80e8649..f26962f 100644
--- a/components/admin/EventManagement.tsx
+++ b/components/admin/EventManagement.tsx
@@ -11,7 +11,9 @@ import {
   Badge,
   Modal,
   CloseButton,
+  Avatar,
 } from "@/components/ui";
+import { updateUser } from "@/actions/admin/users";
 
 interface Event {
   id: string;
@@ -28,6 +30,24 @@ interface Event {
   registrationsCount?: number;
 }
 
+interface EventRegistration {
+  id: string;
+  userId: string;
+  eventId: string;
+  createdAt: string;
+  user: {
+    id: string;
+    username: string;
+    avatar: string | null;
+    score: number;
+    level: number;
+    hp: number;
+    maxHp: number;
+    xp: number;
+    maxXp: number;
+  };
+}
+
 interface EventFormData {
   date: string;
   name: string;
@@ -78,6 +98,14 @@ export default function EventManagement() {
   const [editingEvent, setEditingEvent] = useState<Event | null>(null);
   const [isCreating, setIsCreating] = useState(false);
   const [saving, setSaving] = useState(false);
+  const [viewingRegistrations, setViewingRegistrations] =
+    useState<Event | null>(null);
+  const [registrations, setRegistrations] = useState<EventRegistration[]>([]);
+  const [loadingRegistrations, setLoadingRegistrations] = useState(false);
+  const [editingScores, setEditingScores] = useState<Record<string, number>>(
+    {}
+  );
+  const [savingScore, setSavingScore] = useState<string | null>(null);
   const [formData, setFormData] = useState<EventFormData>({
     date: "",
     name: "",
@@ -207,6 +235,75 @@ export default function EventManagement() {
     });
   };
 
+  const handleViewRegistrations = async (event: Event) => {
+    setViewingRegistrations(event);
+    setLoadingRegistrations(true);
+    try {
+      const response = await fetch(
+        `/api/admin/events/${event.id}/registrations`
+      );
+      if (response.ok) {
+        const data = await response.json();
+        setRegistrations(data);
+        // Initialiser les scores d'édition avec les scores actuels
+        const scoresMap: Record<string, number> = {};
+        data.forEach((reg: EventRegistration) => {
+          scoresMap[reg.user.id] = reg.user.score;
+        });
+        setEditingScores(scoresMap);
+      } else {
+        alert("Erreur lors de la récupération des inscrits");
+      }
+    } catch (error) {
+      console.error("Error fetching registrations:", error);
+      alert("Erreur lors de la récupération des inscrits");
+    } finally {
+      setLoadingRegistrations(false);
+    }
+  };
+
+  const handleCloseRegistrations = () => {
+    setViewingRegistrations(null);
+    setRegistrations([]);
+    setEditingScores({});
+  };
+
+  const handleScoreChange = (userId: string, newScore: number) => {
+    setEditingScores({
+      ...editingScores,
+      [userId]: newScore,
+    });
+  };
+
+  const handleSaveScore = async (userId: string) => {
+    const newScore = editingScores[userId];
+    if (newScore === undefined) return;
+
+    setSavingScore(userId);
+    startTransition(async () => {
+      try {
+        const result = await updateUser(userId, { score: newScore });
+        if (result.success) {
+          // Mettre à jour le score dans la liste locale
+          setRegistrations((prev) =>
+            prev.map((reg) =>
+              reg.user.id === userId
+                ? { ...reg, user: { ...reg.user, score: newScore } }
+                : reg
+            )
+          );
+        } else {
+          alert(result.error || "Erreur lors de la mise à jour du score");
+        }
+      } catch (error) {
+        console.error("Error updating score:", error);
+        alert("Erreur lors de la mise à jour du score");
+      } finally {
+        setSavingScore(null);
+      }
+    });
+  };
+
   if (loading) {
     return <div className="text-center text-gray-400 py-8">Chargement...</div>;
   }
@@ -410,7 +507,15 @@ export default function EventManagement() {
                     </div>
                   </div>
                   {!isCreating && !editingEvent && (
-                    <div className="flex gap-2 sm:ml-4 flex-shrink-0">
+                    <div className="flex gap-2 sm:ml-4 flex-shrink-0 flex-wrap">
+                      <Button
+                        onClick={() => handleViewRegistrations(event)}
+                        variant="primary"
+                        size="sm"
+                        className="whitespace-nowrap"
+                      >
+                        Inscrits ({event.registrationsCount || 0})
+                      </Button>
                       <Button
                         onClick={() => handleEdit(event)}
                         variant="primary"
@@ -435,6 +540,116 @@ export default function EventManagement() {
           })}
         </div>
       )}
+
+      {/* Modal des inscrits */}
+      {viewingRegistrations && (
+        <Modal
+          isOpen={!!viewingRegistrations}
+          onClose={handleCloseRegistrations}
+          size="lg"
+        >
+          <div className="p-6">
+            <div className="flex items-center justify-between mb-4">
+              <h4 className="text-pixel-gold font-bold text-base sm:text-lg break-words">
+                Inscrits à &quot;{viewingRegistrations.name}&quot;
+              </h4>
+              <CloseButton onClick={handleCloseRegistrations} size="lg" />
+            </div>
+
+            {loadingRegistrations ? (
+              <div className="text-center text-gray-400 py-8">
+                Chargement...
+              </div>
+            ) : registrations.length === 0 ? (
+              <div className="text-center text-gray-400 py-8">
+                Aucun inscrit pour cet événement
+              </div>
+            ) : (
+              <div className="space-y-3 max-h-[60vh] overflow-y-auto">
+                {registrations.map((registration) => {
+                  const user = registration.user;
+                  const currentScore = editingScores[user.id] ?? user.score;
+                  const isSaving = savingScore === user.id;
+
+                  return (
+                    <Card
+                      key={registration.id}
+                      variant="default"
+                      className="p-3 sm:p-4"
+                    >
+                      <div className="flex flex-col sm:flex-row sm:items-center gap-3">
+                        <div className="flex items-center gap-3 flex-1 min-w-0">
+                          <Avatar
+                            src={user.avatar}
+                            username={user.username}
+                            size="md"
+                            borderClassName="border-2 border-pixel-gold/50"
+                          />
+                          <div className="flex-1 min-w-0">
+                            <h5 className="text-pixel-gold font-bold text-sm sm:text-base break-words">
+                              {user.username}
+                            </h5>
+                            <p className="text-gray-400 text-xs sm:text-sm">
+                              Niveau {user.level} • HP: {user.hp}/{user.maxHp} •
+                              XP: {user.xp}/{user.maxXp}
+                            </p>
+                          </div>
+                        </div>
+                        <div className="flex flex-col sm:flex-row items-start sm:items-center gap-2 sm:gap-3 flex-shrink-0">
+                          <div className="flex items-center gap-2">
+                            <label className="text-xs sm:text-sm text-gray-300 whitespace-nowrap">
+                              Score:
+                            </label>
+                            <input
+                              type="number"
+                              value={currentScore}
+                              onChange={(e) =>
+                                handleScoreChange(
+                                  user.id,
+                                  parseInt(e.target.value) || 0
+                                )
+                              }
+                              disabled={isSaving}
+                              className="w-24 px-2 sm:px-3 py-1 bg-black/60 border border-pixel-gold/30 rounded text-white text-xs sm:text-sm text-center disabled:opacity-50"
+                            />
+                          </div>
+                          <div className="flex gap-1 sm:gap-2">
+                            <button
+                              onClick={() =>
+                                handleScoreChange(user.id, currentScore - 100)
+                              }
+                              disabled={isSaving}
+                              className="px-2 sm:px-3 py-1 border border-red-500/50 bg-red-900/20 text-red-400 text-[10px] sm:text-xs rounded hover:bg-red-900/30 transition flex-shrink-0 disabled:opacity-50"
+                            >
+                              -100
+                            </button>
+                            <button
+                              onClick={() =>
+                                handleScoreChange(user.id, currentScore + 100)
+                              }
+                              disabled={isSaving}
+                              className="px-2 sm:px-3 py-1 border border-green-500/50 bg-green-900/20 text-green-400 text-[10px] sm:text-xs rounded hover:bg-green-900/30 transition flex-shrink-0 disabled:opacity-50"
+                            >
+                              +100
+                            </button>
+                            <button
+                              onClick={() => handleSaveScore(user.id)}
+                              disabled={isSaving || currentScore === user.score}
+                              className="px-2 sm:px-3 py-1 border border-pixel-gold/50 bg-pixel-gold/20 text-pixel-gold text-[10px] sm:text-xs rounded hover:bg-pixel-gold/30 transition flex-shrink-0 disabled:opacity-50 disabled:cursor-not-allowed"
+                            >
+                              {isSaving ? "..." : "Sauver"}
+                            </button>
+                          </div>
+                        </div>
+                      </div>
+                    </Card>
+                  );
+                })}
+              </div>
+            )}
+          </div>
+        </Modal>
+      )}
     </div>
   );
 }
diff --git a/services/events/event-registration.service.ts b/services/events/event-registration.service.ts
index 04825b5..ecfe7c4 100644
--- a/services/events/event-registration.service.ts
+++ b/services/events/event-registration.service.ts
@@ -38,7 +38,8 @@ export class EventRegistrationService {
     }
 
     // Récupérer les points à retirer depuis les préférences du site
-    const sitePreferences = await sitePreferencesService.getOrCreateSitePreferences();
+    const sitePreferences =
+      await sitePreferencesService.getOrCreateSitePreferences();
     const pointsToRemove = sitePreferences.eventRegistrationPoints || 100;
 
     // Supprimer l'inscription et retirer les points en parallèle
@@ -118,6 +119,35 @@ export class EventRegistrationService {
     return count;
   }
 
+  /**
+   * Récupère tous les inscrits d'un événement avec leurs informations
+   */
+  async getEventRegistrations(eventId: string) {
+    return prisma.eventRegistration.findMany({
+      where: {
+        eventId,
+      },
+      include: {
+        user: {
+          select: {
+            id: true,
+            username: true,
+            avatar: true,
+            score: true,
+            level: true,
+            hp: true,
+            maxHp: true,
+            xp: true,
+            maxXp: true,
+          },
+        },
+      },
+      orderBy: {
+        createdAt: "asc",
+      },
+    });
+  }
+
   /**
    * Valide et inscrit un utilisateur à un événement avec toutes les règles métier
    */
@@ -146,7 +176,8 @@ export class EventRegistrationService {
     }
 
     // Récupérer les points à attribuer depuis les préférences du site
-    const sitePreferences = await sitePreferencesService.getOrCreateSitePreferences();
+    const sitePreferences =
+      await sitePreferencesService.getOrCreateSitePreferences();
     const pointsToAward = sitePreferences.eventRegistrationPoints || 100;
 
     // Créer l'inscription et attribuer les points en parallèle