diff --git a/frontend/src/components/MatchReportApiDialog.vue b/frontend/src/components/MatchReportApiDialog.vue
index a47f1f11..8667c0af 100755
--- a/frontend/src/components/MatchReportApiDialog.vue
+++ b/frontend/src/components/MatchReportApiDialog.vue
@@ -20,7 +20,7 @@
                     </div>
                 </div>
 
-                <label class="test-mode-control" :class="{ active: isTestMode }">
+                <label v-if="!standaloneTest" class="test-mode-control" :class="{ active: isTestMode }">
                     <input v-model="isTestMode" type="checkbox" @change="onTestModeChange" />
                     <span>
                         <strong>Testmodus</strong>
@@ -28,6 +28,28 @@
                     </span>
                 </label>
 
+                <div v-else class="standalone-test-banner">
+                    <span>🧪 Eigenständiger Simulator – keine Verbindung zu nuScore</span>
+                    <label>
+                        Spielsystem
+                        <select v-model="standaloneTestSystem" @change="initializeStandaloneTestData">
+                            <option v-for="system in standaloneTestSystems" :key="system.value" :value="system.value">{{ system.label }}</option>
+                        </select>
+                    </label>
+                    <button type="button" class="btn-secondary" @click="resetStandaloneTest">Originaleingabe zurücksetzen</button>
+                </div>
+
+                <div v-if="standaloneTest" class="test-data-inspector">
+                    <details>
+                        <summary>Originaleingabe anzeigen</summary>
+                        <pre>{{ formatTestData(originalTestInput) }}</pre>
+                    </details>
+                    <details>
+                        <summary>Aktuellen Zustand anzeigen</summary>
+                        <pre>{{ formatTestData(buildStandaloneTestPayload()) }}</pre>
+                    </details>
+                </div>
+
                 <div v-if="isTestMode && (meetingDetails?.isCompleted || meetingData?.isCompleted)" class="test-verification">
                     <button type="button" class="btn-secondary" @click="verifyCompletedMatchProjection">
                         🧪 Gespeicherte Paarungen prüfen
@@ -210,6 +232,18 @@
                                             :disabled="!canSelectDoublePosition(player, 'home', 2)">
                                             D2
                                         </button>
+                                        <button v-if="meetingDetails.teamLineupDoublePositions.includes(3)" class="double-btn"
+                                            :class="{ active: player.positionDouble === 3 }"
+                                            @click="toggleDoublePosition(player, 'home', 3)"
+                                            :disabled="!canSelectDoublePosition(player, 'home', 3)">
+                                            D3
+                                        </button>
+                                        <button v-if="meetingDetails.teamLineupDoublePositions.includes(3)" class="double-btn"
+                                            :class="{ active: player.positionDouble === 3 }"
+                                            @click="toggleDoublePosition(player, 'home', 3)"
+                                            :disabled="!canSelectDoublePosition(player, 'home', 3)">
+                                            D3
+                                        </button>
                                     </div>
                                 </div>
                             </div>
@@ -304,6 +338,18 @@
                                             :disabled="!canSelectDoublePosition(player, 'guest', 2)">
                                             D2
                                         </button>
+                                        <button v-if="meetingDetails.teamLineupDoublePositions.includes(3)" class="double-btn"
+                                            :class="{ active: player.positionDouble === 3 }"
+                                            @click="toggleDoublePosition(player, 'guest', 3)"
+                                            :disabled="!canSelectDoublePosition(player, 'guest', 3)">
+                                            D3
+                                        </button>
+                                        <button v-if="meetingDetails.teamLineupDoublePositions.includes(3)" class="double-btn"
+                                            :class="{ active: player.positionDouble === 3 }"
+                                            @click="toggleDoublePosition(player, 'guest', 3)"
+                                            :disabled="!canSelectDoublePosition(player, 'guest', 3)">
+                                            D3
+                                        </button>
                                     </div>
                                 </div>
                             </div>
@@ -732,14 +778,28 @@ export default {
         match: {
             type: Object,
             required: true
+        },
+        standaloneTest: {
+            type: Boolean,
+            default: false
         }
     },
     data() {
         return {
             loading: true,
             error: null,
-            isTestMode: false,
+            isTestMode: this.standaloneTest,
             testVerification: null,
+            originalTestInput: null,
+            standaloneTestSystem: 'braunschweiger system',
+            standaloneTestSystems: [
+                { value: 'paarkreuz-system', label: 'Paarkreuz-System (6 gegen 6)' },
+                { value: 'bundessystem', label: 'Bundessystem (4 gegen 4)' },
+                { value: 'werner-scheffler-system', label: 'Werner-Scheffler-System (4 gegen 4)' },
+                { value: 'braunschweiger system', label: 'Braunschweiger System (4 gegen 3)' },
+                { value: 'modifiziertes swaythling-cup-system', label: 'Modifiziertes Swaythling-Cup-System (3 gegen 3)' },
+                { value: 'corbillon-cup-system', label: 'Corbillon-Cup-System (2 gegen 2)' }
+            ],
             meetingData: null,
             meetingDetails: null,
             activeSection: 'general',
@@ -972,6 +1032,11 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
         }
     },
     async mounted() {
+        if (this.standaloneTest) {
+            this.initializeStandaloneTestData();
+            this.initializeResults();
+            return;
+        }
         await this.loadData();
         this.initializeResults();
         this.initializeFinalPins();
@@ -1779,6 +1844,11 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
                 console.log('🚀 Starte Spielbericht-Absendung...');
 
                 if (this.isTestMode) {
+                    if (this.standaloneTest) {
+                        this.submitSucceeded = true;
+                        this.meetingData.isCompleted = true;
+                        this.meetingDetails.isCompleted = true;
+                    }
                     alert('🧪 Testmodus: Der Spielbericht wurde nur lokal geprüft und nicht an nuScore übermittelt.');
                     return;
                 }
@@ -2410,6 +2480,102 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
             });
         },
 
+        createStandaloneTestPlayer(id, firstname, lastname, rank, positionSingle = null, positionDouble = null) {
+            const positions = [];
+            if (positionSingle) positions.push(`E${positionSingle}`);
+            if (positionDouble) positions.push(`D${positionDouble}`);
+            return { nuLigaPersonId: id, firstname, lastname, rank, isSelected: true, positionSingle, positionDouble, positions };
+        },
+
+        initializeStandaloneTestData() {
+            const configs = {
+                'paarkreuz-system': { home: 6, guest: 6, doubles: 3 },
+                bundessystem: { home: 4, guest: 4, doubles: 2 },
+                'werner-scheffler-system': { home: 4, guest: 4, doubles: 2 },
+                'braunschweiger system': { home: 4, guest: 3, doubles: 2 },
+                'modifiziertes swaythling-cup-system': { home: 3, guest: 3, doubles: 1 },
+                'corbillon-cup-system': { home: 2, guest: 2, doubles: 1 }
+            };
+            const config = configs[this.standaloneTestSystem] || configs['braunschweiger system'];
+            const matrixConfig = this.playModeMatrices[this.standaloneTestSystem];
+            const rawMatrix = this.standaloneTestSystem === 'braunschweiger system'
+                ? matrixConfig.matrices['4-3']
+                : matrixConfig;
+            const formations = rawMatrix.map((label, index) => {
+                const [homeToken, guestToken] = label.split('–').map(token => token.trim());
+                const toNuScorePosition = token => token.replace(/^DA/, 'D').replace(/^DB/, 'D').replace(/^A/, 'E').replace(/^B/, 'E');
+                const homeLineupPosition = toNuScorePosition(homeToken);
+                const guestLineupPosition = toNuScorePosition(guestToken);
+                return {
+                matchNr: index + 1,
+                displayString: `${homeLineupPosition}-${guestLineupPosition}`,
+                homeLineupPosition,
+                guestLineupPosition
+                };
+            });
+            const makePlayers = (baseId, side, count) => Array.from({ length: count }, (_, index) => {
+                const rank = index + 1;
+                const doublePosition = rank <= config.doubles * 2 ? Math.ceil(rank / 2) : null;
+                return this.createStandaloneTestPlayer(baseId + rank, side, ['Eins', 'Zwei', 'Drei', 'Vier', 'Fünf', 'Sechs'][index], rank, rank, doublePosition);
+            });
+            const homePlayers = makePlayers(0, 'Heim', config.home);
+            const guestPlayers = makePlayers(100, 'Gast', config.guest);
+            const matches = formations.map((formation) => ({
+                matchNr: formation.matchNr,
+                name: formation.displayString,
+                matchType: formation.homeLineupPosition.startsWith('D') ? 'DOUBLE' : 'SINGLE',
+                set1A: 0, set1B: 0, set2A: 0, set2B: 0, set3A: 0, set3B: 0, set4A: 0, set4B: 0, set5A: 0, set5B: 0,
+                matchesA: 0, matchesB: 0, setsA: 0, setsB: 0, isCompleted: false
+            }));
+            this.meetingData = {
+                scheduleDate: new Date().toISOString(), homeTeamname: 'Test Heim', guestTeamname: 'Test Gast',
+                homeClub: 'Testverein Heim', guestClub: 'Testverein Gast', championship: 'Testwettbewerb',
+                league: 'Testliga', group: '', playMode: this.standaloneTestSystem, playThrough: 'ALLGAMES', isCompleted: false
+            };
+            this.meetingDetails = {
+                ...this.meetingData,
+                playerCountHome: config.home, playerCountGuest: config.guest, signature: {},
+                meetingPlayMode: { matchFormations: formations, singleFormationUpTo: config.home },
+                optionalPlayModes: [], matches,
+                teamLineupHomePlayers: homePlayers, teamLineupGuestPlayers: guestPlayers,
+                teamLineupSinglePositions: Array.from({ length: Math.max(config.home, config.guest) }, (_, index) => index + 1),
+                teamLineupDoublePositions: Array.from({ length: config.doubles }, (_, index) => index + 1)
+            };
+            this.originalTestInput = JSON.parse(JSON.stringify(this.meetingDetails));
+            this.homePin = 'test';
+            this.guestPin = 'test';
+            this.finalHomePin = 'test';
+            this.finalGuestPin = 'test';
+            this.isHomeLineupCertified = false;
+            this.isGuestLineupCertified = false;
+            this.isGreetingCompleted = false;
+            this.submitSucceeded = false;
+            this.initialCompletionState = false;
+            this.prepareResults();
+        },
+
+        resetStandaloneTest() {
+            this.initializeStandaloneTestData();
+        },
+
+        buildStandaloneTestPayload() {
+            if (!this.standaloneTest) return null;
+            return {
+                playerCountHome: this.getSinglePlayerCount('home'),
+                playerCountGuest: this.getSinglePlayerCount('guest'),
+                teamLineupHomePlayers: this.meetingDetails?.teamLineupHomePlayers || [],
+                teamLineupGuestPlayers: this.meetingDetails?.teamLineupGuestPlayers || [],
+                meetingPlayMode: this.meetingDetails?.meetingPlayMode,
+                signature: this.meetingDetails?.signature,
+                isGreetingCompleted: this.isGreetingCompleted,
+                matches: this.results
+            };
+        },
+
+        formatTestData(data) {
+            return JSON.stringify(data || {}, null, 2);
+        },
+
         async loadData() {
             this.loading = true;
             this.error = null;
@@ -2525,10 +2691,11 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
                 ? this.meetingDetails.matches
                 : [];
             if (serverMatches.length > 0) {
+                const matrix = this.currentPlayModeMatrix;
                 this.results = serverMatches.map((match, index) => ({
-                    label: (typeof match?.name === 'string' && match.name.trim()) || `Spiel ${index + 1}`,
-                    homeName: this.formatMeetingMatchSide(match, 'home') || match?.homePlayer || '',
-                    guestName: this.formatMeetingMatchSide(match, 'guest') || match?.guestPlayer || '',
+                    label: (typeof match?.name === 'string' && match.name.trim()) || matrix[index] || `Spiel ${index + 1}`,
+                    homeName: this.formatMeetingMatchSide(match, 'home') || match?.homePlayer || this.resolveSide(matrix[index] || '', 'home'),
+                    guestName: this.formatMeetingMatchSide(match, 'guest') || match?.guestPlayer || this.resolveSide(matrix[index] || '', 'guest'),
                     sets: ['', '', '', '', ''],
                     completed: false,
                     result: '1:0'
@@ -4188,6 +4355,11 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
         async validatePin(team, pin) {
             if (!pin || !this.meetingDetails) return false;
 
+            if (this.standaloneTest) {
+                this.showPinValidation(team, true, 'Testmodus');
+                return true;
+            }
+
             const expectedHash = team === 'home' ? this.meetingDetails.homePin : this.meetingDetails.guestPin;
 
 
@@ -4768,6 +4940,49 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
     font-size: 12px;
 }
 
+.standalone-test-banner {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 12px;
+    margin: 0 0 12px;
+    padding: 10px 14px;
+    border: 1px solid #d78a00;
+    border-radius: 10px;
+    background: #fff3cd;
+    color: #795300;
+    font-weight: 600;
+}
+
+.test-data-inspector {
+    display: grid;
+    gap: 8px;
+    margin: 0 0 16px;
+}
+
+.test-data-inspector details {
+    border: 1px solid var(--border-color);
+    border-radius: 8px;
+    padding: 8px 10px;
+    background: var(--surface-muted);
+}
+
+.test-data-inspector summary {
+    cursor: pointer;
+    font-weight: 600;
+}
+
+.test-data-inspector pre {
+    max-height: 260px;
+    overflow: auto;
+    margin: 10px 0 0;
+    padding: 10px;
+    border-radius: 6px;
+    background: #17202a;
+    color: #f8f9f9;
+    font-size: 11px;
+}
+
 .test-verification {
     margin: -8px 0 16px;
     padding: 12px 14px;
diff --git a/frontend/src/components/schedule/ScheduleLayoutShell.vue b/frontend/src/components/schedule/ScheduleLayoutShell.vue
index b18c0405..1f5dfa91 100755
--- a/frontend/src/components/schedule/ScheduleLayoutShell.vue
+++ b/frontend/src/components/schedule/ScheduleLayoutShell.vue
@@ -30,6 +30,14 @@
                     >
                         {{ $t('schedule.addMatch') }}
                     </button>
+                    <button
+                        v-if="showScheduleActions"
+                        type="button"
+                        class="btn-secondary schedule-add-match-button"
+                        @click="$emit('open-match-report-simulator')"
+                    >
+                        🧪 Spielbericht simulieren
+                    </button>
                     <button v-if="showFriendlyActions" @click="$emit('open-friendly-match-modal')" class="btn-secondary">Freundschaftsspiel</button>
                     <button
                         v-if="showGalleryButton"
diff --git a/frontend/src/views/ScheduleView.vue b/frontend/src/views/ScheduleView.vue
index 88bd9d0f..a5c922bf 100755
--- a/frontend/src/views/ScheduleView.vue
+++ b/frontend/src/views/ScheduleView.vue
@@ -31,6 +31,7 @@
             @season-change="onSeasonChange"
             @open-import-modal="openImportModal"
             @open-manual-match-modal="openManualMatchDialog"
+            @open-match-report-simulator="openMatchReportSimulator"
             @open-friendly-match-modal="openFriendlyMatchDialog"
             @open-gallery-dialog="openGalleryDialog"
             @update:team-search-query="teamSearchQuery = $event"
@@ -2863,6 +2864,17 @@ export default {
                 }
             });
         },
+
+        openMatchReportSimulator() {
+            this.openDialog({
+                title: 'Spielbericht simulieren',
+                component: 'MatchReportApiDialog',
+                props: {
+                    match: { startDate: new Date(), endDate: null, matches: [] },
+                    standaloneTest: true
+                }
+            });
+        },
         
         async loadLeagueTable(leagueId) {
             try {