diff --git a/src/app/components/tournament-manage/tournament-manage.component.html b/src/app/components/tournament-manage/tournament-manage.component.html
index 4559d86..e751acb 100644
--- a/src/app/components/tournament-manage/tournament-manage.component.html
+++ b/src/app/components/tournament-manage/tournament-manage.component.html
@@ -179,6 +179,17 @@
                           </button>
                         </mat-menu>
                       }
+                      @if (group.status == 'FINISHED') {
+                        <button mat-icon-button [matMenuTriggerFor]="groupMenu" class="menu-button m-3">
+                          <mat-icon>more_vert</mat-icon>
+                        </button>
+                        <mat-menu #groupMenu="matMenu">
+                          <button mat-menu-item (click)="reopenGroup(group)">
+                            <mat-icon>check</mat-icon>
+                            Onderdeel heropenen
+                          </button>
+                        </mat-menu>
+                      }
                     </ng-template>
                     <mat-tab-group
                       animationDuration="0ms"
diff --git a/src/app/components/tournament-manage/tournament-manage.component.ts b/src/app/components/tournament-manage/tournament-manage.component.ts
index 2787b1c..e03e2be 100644
--- a/src/app/components/tournament-manage/tournament-manage.component.ts
+++ b/src/app/components/tournament-manage/tournament-manage.component.ts
@@ -169,6 +169,11 @@ export class TournamentManageComponent implements OnInit {
       this.tournament = data;
     });
   }
+  reopenGroup(group: Group) {
+    this.tournamentService.reopenGroup(this.tournament.id, group.id).subscribe(data => {
+      this.tournament = data;
+    });
+  }
 
   divideTournament() {
     this.tournamentService.divide(this.tournament.id).subscribe(data => {
diff --git a/src/app/service/tournament.service.ts b/src/app/service/tournament.service.ts
index 2157a60..f4364df 100644
--- a/src/app/service/tournament.service.ts
+++ b/src/app/service/tournament.service.ts
@@ -64,6 +64,9 @@ export class TournamentService {
   public finishGroup(tournamentId: number, groupId: number): Observable<Tournament> {
     return this.http.post<Tournament>(`${this.tournamentsUrl}/${tournamentId}/groups/${groupId}/finish`, null);
   }
+  public reopenGroup(tournamentId: number, groupId: number): Observable<Tournament> {
+    return this.http.post<Tournament>(`${this.tournamentsUrl}/${tournamentId}/groups/${groupId}/reopen`, null);
+  }
 
   public newRound(tournamentId: number, groupId: number): Observable<Tournament> {
     return this.http.post<Tournament>(`${this.tournamentsUrl}/${tournamentId}/groups/${groupId}/new`, null);