diff --git a/backend/controllers/officialTournamentController.js b/backend/controllers/officialTournamentController.js
index cf88a4f..9e1db96 100644
--- a/backend/controllers/officialTournamentController.js
+++ b/backend/controllers/officialTournamentController.js
@@ -160,6 +160,71 @@ export const upsertCompetitionMember = async (req, res) => {
   }
 };
 
+export const updateParticipantStatus = async (req, res) => {
+  try {
+    const { authcode: userToken } = req.headers;
+    const { clubId, id } = req.params; // id = tournamentId
+    await checkAccess(userToken, clubId);
+    const { competitionId, memberId, action } = req.body;
+    
+    if (!competitionId || !memberId || !action) {
+      return res.status(400).json({ error: 'competitionId, memberId and action required' });
+    }
+
+    const [row] = await OfficialCompetitionMember.findOrCreate({
+      where: { competitionId, memberId },
+      defaults: {
+        tournamentId: id,
+        competitionId,
+        memberId,
+        wants: false,
+        registered: false,
+        participated: false,
+        placement: null,
+      }
+    });
+
+    // Status-Update basierend auf Aktion
+    switch (action) {
+      case 'register':
+        // Von "möchte teilnehmen" zu "angemeldet"
+        row.wants = true;
+        row.registered = true;
+        row.participated = false;
+        break;
+      case 'participate':
+        // Von "angemeldet" zu "hat gespielt"
+        row.wants = true;
+        row.registered = true;
+        row.participated = true;
+        break;
+      case 'reset':
+        // Zurück zu "möchte teilnehmen"
+        row.wants = true;
+        row.registered = false;
+        row.participated = false;
+        break;
+      default:
+        return res.status(400).json({ error: 'Invalid action. Use: register, participate, or reset' });
+    }
+
+    await row.save();
+    return res.status(200).json({ 
+      success: true, 
+      id: row.id,
+      status: {
+        wants: row.wants,
+        registered: row.registered,
+        participated: row.participated,
+        placement: row.placement
+      }
+    });
+  } catch (e) {
+    console.error('[updateParticipantStatus] Error:', e);
+    res.status(500).json({ error: 'Failed to update participant status' });
+  }
+};
+
 export const listOfficialTournaments = async (req, res) => {
   try {
     const { authcode: userToken } = req.headers;
diff --git a/backend/routes/officialTournamentRoutes.js b/backend/routes/officialTournamentRoutes.js
index 2a3c012..16d1108 100644
--- a/backend/routes/officialTournamentRoutes.js
+++ b/backend/routes/officialTournamentRoutes.js
@@ -1,7 +1,7 @@
 import express from 'express';
 import multer from 'multer';
 import { authenticate } from '../middleware/authMiddleware.js';
-import { uploadTournamentPdf, getParsedTournament, listOfficialTournaments, deleteOfficialTournament, upsertCompetitionMember, listClubParticipations } from '../controllers/officialTournamentController.js';
+import { uploadTournamentPdf, getParsedTournament, listOfficialTournaments, deleteOfficialTournament, upsertCompetitionMember, listClubParticipations, updateParticipantStatus } from '../controllers/officialTournamentController.js';
 
 const router = express.Router();
 const upload = multer({ storage: multer.memoryStorage() });
@@ -14,6 +14,7 @@ router.post('/:clubId/upload', upload.single('pdf'), uploadTournamentPdf);
 router.get('/:clubId/:id', getParsedTournament);
 router.delete('/:clubId/:id', deleteOfficialTournament);
 router.post('/:clubId/:id/participation', upsertCompetitionMember);
+router.post('/:clubId/:id/status', updateParticipantStatus);
 
 export default router;
 
diff --git a/frontend/src/views/OfficialTournaments.vue b/frontend/src/views/OfficialTournaments.vue
index a117abf..ebdded5 100644
--- a/frontend/src/views/OfficialTournaments.vue
+++ b/frontend/src/views/OfficialTournaments.vue
@@ -163,8 +163,8 @@
               <th>Mitglied</th>
               <th>Konkurrenz</th>
               <th>Startzeit</th>
-              <th>Angemeldet</th>
-              <th>Teilgenommen</th>
+              <th>Status</th>
+              <th>Aktion</th>
               <th>Platzierung</th>
             </tr>
           </thead>
@@ -175,9 +175,53 @@
                   <td v-if="idx === 0" :rowspan="group.items.length" class="member-cell">{{ group.memberName }}</td>
                   <td class="indented">{{ item.competitionName }}</td>
                   <td>{{ item.start }}</td>
-                  <td>{{ item.registered ? 'Ja' : 'Nein' }}</td>
-                  <td>{{ item.participated ? 'Ja' : 'Nein' }}</td>
-                  <td>{{ item.placement || '–' }}</td>
+                  <td class="status-cell">
+                    <span v-if="item.participated" class="status-badge status-played">Hat gespielt</span>
+                    <span v-else-if="item.registered" class="status-badge status-registered">Angemeldet</span>
+                    <span v-else-if="item.wants" class="status-badge status-wants">Möchte teilnehmen</span>
+                    <span v-else class="status-badge status-none">Nicht interessiert</span>
+                  </td>
+                  <td class="action-cell">
+                    <button 
+                      v-if="!item.participated && !item.registered && item.wants" 
+                      @click="updateStatus(item, 'register')"
+                      class="btn-status btn-register"
+                      title="Als angemeldet markieren">
+                      Anmelden
+                    </button>
+                    <button 
+                      v-else-if="item.registered && !item.participated" 
+                      @click="updateStatus(item, 'participate')"
+                      class="btn-status btn-participate"
+                      title="Als teilgenommen markieren">
+                      Teilgenommen
+                    </button>
+                    <button 
+                      v-else-if="item.participated" 
+                      @click="updateStatus(item, 'reset')"
+                      class="btn-status btn-reset"
+                      title="Status zurücksetzen">
+                      Zurücksetzen
+                    </button>
+                    <button 
+                      v-else
+                      @click="updateStatus(item, 'register')"
+                      class="btn-status btn-register"
+                      title="Teilnahme anmelden">
+                      Anmelden
+                    </button>
+                  </td>
+                  <td>
+                    <input 
+                      v-if="item.participated"
+                      type="text" 
+                      :value="item.placement || ''"
+                      @change="updatePlacement(item, $event.target.value)"
+                      placeholder="z.B. 3. Platz"
+                      class="placement-input"
+                    />
+                    <span v-else>{{ item.placement || '–' }}</span>
+                  </td>
                 </tr>
               </template>
             </template>
@@ -756,6 +800,43 @@ export default {
       this.getParticipation(c.id, m.id).placement = v || null;
       this.saveParticipation(c.id, m.id);
     },
+    async updateStatus(item, action) {
+      try {
+        const [competitionId, memberId] = item.key.split('-');
+        const response = await apiClient.post(`/official-tournaments/${this.currentClub}/${this.uploadedId}/status`, {
+          competitionId: parseInt(competitionId),
+          memberId: parseInt(memberId),
+          action: action
+        });
+        
+        if (response.data.success) {
+          // Aktualisiere den lokalen Status
+          const key = `${competitionId}-${memberId}`;
+          const participation = this.getParticipation(competitionId, memberId);
+          participation.wants = response.data.status.wants;
+          participation.registered = response.data.status.registered;
+          participation.participated = response.data.status.participated;
+          participation.placement = response.data.status.placement;
+          
+          // Aktualisiere auch die participationMap
+          this.participationMap[key] = participation;
+        }
+      } catch (error) {
+        console.error('Fehler beim Aktualisieren des Status:', error);
+        alert('Fehler beim Aktualisieren des Status: ' + (error.response?.data?.error || error.message));
+      }
+    },
+    async updatePlacement(item, value) {
+      try {
+        const [competitionId, memberId] = item.key.split('-');
+        const participation = this.getParticipation(competitionId, memberId);
+        participation.placement = value.trim() || null;
+        await this.saveParticipation(competitionId, memberId);
+      } catch (error) {
+        console.error('Fehler beim Aktualisieren der Platzierung:', error);
+        alert('Fehler beim Aktualisieren der Platzierung: ' + (error.response?.data?.error || error.message));
+      }
+    },
     // Auswahl Helfer + PDF-Generierung
     openMemberDialog() { this.showMemberDialog = true; },
     closeMemberDialog() { this.showMemberDialog = false; },
@@ -1024,6 +1105,112 @@ th, td { border-bottom: 1px solid var(--border-color); padding: 0.5rem; text-ali
 .dialog-col h4 { margin: 0 0 .5rem 0; }
 .members-col .check-item span.active { font-weight: bold; }
 .recommendations-col .check-item { padding: .15rem 0; }
+
+/* Status Management Styles */
+.status-cell {
+  text-align: center;
+  vertical-align: middle;
+}
+
+.status-badge {
+  display: inline-block;
+  padding: 0.25rem 0.5rem;
+  border-radius: 4px;
+  font-size: 0.85rem;
+  font-weight: 500;
+  text-align: center;
+  min-width: 120px;
+}
+
+.status-badge.status-played {
+  background-color: #d4edda;
+  color: #155724;
+  border: 1px solid #c3e6cb;
+}
+
+.status-badge.status-registered {
+  background-color: #d1ecf1;
+  color: #0c5460;
+  border: 1px solid #bee5eb;
+}
+
+.status-badge.status-wants {
+  background-color: #fff3cd;
+  color: #856404;
+  border: 1px solid #ffeaa7;
+}
+
+.status-badge.status-none {
+  background-color: #f8d7da;
+  color: #721c24;
+  border: 1px solid #f5c6cb;
+}
+
+.action-cell {
+  text-align: center;
+  vertical-align: middle;
+}
+
+.btn-status {
+  padding: 0.4rem 0.8rem;
+  border: none;
+  border-radius: 4px;
+  font-size: 0.85rem;
+  font-weight: 500;
+  cursor: pointer;
+  transition: all 0.5s ease;
+  min-width: 100px;
+}
+
+.btn-status:hover {
+  transform: translateY(-1px);
+  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+}
+
+.btn-status:active {
+  transform: translateY(0);
+}
+
+.btn-register {
+  background-color: #007bff;
+  color: white;
+}
+
+.btn-register:hover {
+  background-color: #0056b3;
+}
+
+.btn-participate {
+  background-color: #28a745;
+  color: white;
+}
+
+.btn-participate:hover {
+  background-color: #1e7e34;
+}
+
+.btn-reset {
+  background-color: #6c757d;
+  color: white;
+}
+
+.btn-reset:hover {
+  background-color: #545b62;
+}
+
+.placement-input {
+  width: 120px;
+  padding: 0.25rem 0.5rem;
+  border: 1px solid #ced4da;
+  border-radius: 4px;
+  font-size: 0.85rem;
+}
+
+.placement-input:focus {
+  outline: none;
+  border-color: #007bff;
+  box-shadow: 0 0 0 2px rgba(0,123,255,0.25);
+}
 </style>