diff --git a/frontend/src/components/MatchReportApiDialog.vue b/frontend/src/components/MatchReportApiDialog.vue
index e9fd53fe..d263a8fb 100755
--- a/frontend/src/components/MatchReportApiDialog.vue
+++ b/frontend/src/components/MatchReportApiDialog.vue
@@ -626,7 +626,18 @@
                         <div v-else-if="ttrLoading" class="ttr-preview-empty">TTR-Werte werden geladen …</div>
                         <div v-else class="ttr-preview-table-wrap">
                             <table class="ttr-preview-table"><thead><tr><th>Einzel</th><th>Heim</th><th>Gast</th><th>Erwartung Heim</th><th>Vorschau / Ergebnis</th></tr></thead>
-                            <tbody><tr v-for="entry in ttrSingles" :key="`ttr-${entry.index}`"><td>{{ entry.index + 1 }}</td><td>{{ entry.homeName }} · {{ ttrSnapshot(entry.index).homeTtr }}</td><td>{{ entry.guestName }} · {{ ttrSnapshot(entry.index).guestTtr }}</td><td>{{ formatTtrProbability(entry.preview.homeWin.expectedWinProbability) }}</td><td v-if="entry.actual">{{ entry.actual.winner === 'home' ? 'Heimsieg' : 'Gastsieg' }}: Heim {{ formatTtrChange(entry.actual.home.displayChange) }}, Gast {{ formatTtrChange(entry.actual.guest.displayChange) }}</td><td v-else>Heimsieg: {{ formatTtrChange(entry.preview.homeWin.displayChange) }} · Heimpleite: {{ formatTtrChange(entry.preview.homeLoss.displayChange) }}</td></tr></tbody></table>
+                            <tbody>
+                                <tr v-for="entry in ttrSingles" :key="`ttr-${entry.index}`">
+                                    <td>{{ entry.index + 1 }}</td>
+                                    <td>{{ entry.homeName }} · {{ entry.homeTtr ?? 'TTR fehlt' }}</td>
+                                    <td>{{ entry.guestName }} · {{ entry.guestTtr ?? 'TTR fehlt' }}</td>
+                                    <td>{{ entry.preview ? formatTtrProbability(entry.preview.homeWin.expectedWinProbability) : '—' }}</td>
+                                    <td v-if="entry.actual">{{ entry.actual.winner === 'home' ? 'Heimsieg' : 'Gastsieg' }}: Heim {{ formatTtrChange(entry.actual.home.displayChange) }}, Gast {{ formatTtrChange(entry.actual.guest.displayChange) }}</td>
+                                    <td v-else-if="entry.preview">Heimsieg: {{ formatTtrChange(entry.preview.homeWin.displayChange) }} · Heimniederlage: {{ formatTtrChange(entry.preview.homeLoss.displayChange) }}</td>
+                                    <td v-else>Berechnung erst mit beiden TTR-Werten möglich.</td>
+                                </tr>
+                                <tr v-if="!ttrSingles.length"><td colspan="5">Noch keine Einzelpaarungen vorhanden. Bitte die Einzelaufstellungen prüfen.</td></tr>
+                            </tbody></table>
                         </div>
                         <p v-if="ttrUnavailablePlayers.length" class="ttr-preview-empty">Noch ohne Wert: {{ ttrUnavailablePlayers.join(', ') }}.</p>
                     </div>
@@ -1134,16 +1145,23 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
                 .filter(({ match }) => !this.isTtrDouble(match))
                 .map(({ match, index }) => {
                     const snapshot = this.ttrSnapshot(index);
-                    if (!Number.isFinite(Number(snapshot?.homeTtr)) || !Number.isFinite(Number(snapshot?.guestTtr))) return null;
+                    const entry = {
+                        index,
+                        homeName: match.homeName || 'Heim',
+                        guestName: match.guestName || 'Gast',
+                        homeTtr: this.isAvailableTtr(snapshot?.homeTtr) ? Number(snapshot.homeTtr) : null,
+                        guestTtr: this.isAvailableTtr(snapshot?.guestTtr) ? Number(snapshot.guestTtr) : null,
+                        preview: null,
+                        actual: null,
+                    };
+                    if (entry.homeTtr === null || entry.guestTtr === null) return entry;
                     const homeWin = calculateTtrChange(snapshot.homeTtr, snapshot.guestTtr, 'win', snapshot.homeAdjustmentConstant);
                     const homeLoss = calculateTtrChange(snapshot.homeTtr, snapshot.guestTtr, 'loss', snapshot.homeAdjustmentConstant);
                     const guestWin = calculateTtrChange(snapshot.guestTtr, snapshot.homeTtr, 'win', snapshot.guestAdjustmentConstant);
                     const guestLoss = calculateTtrChange(snapshot.guestTtr, snapshot.homeTtr, 'loss', snapshot.guestAdjustmentConstant);
                     const winner = this.ttrWinner(match);
                     return {
-                        index,
-                        homeName: match.homeName || 'Heim',
-                        guestName: match.guestName || 'Gast',
+                        ...entry,
                         preview: { homeWin, homeLoss, guestWin, guestLoss },
                         actual: winner ? {
                             winner,
@@ -1151,10 +1169,10 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
                             guest: winner === 'guest' ? guestWin : guestLoss,
                         } : null,
                     };
-                }).filter(Boolean);
+                });
         },
         ttrUnavailablePlayers() {
-            return this.ttrPlayers.filter((player) => !Number.isFinite(Number(player.ttr))).map((player) => player.name);
+            return this.ttrPlayers.filter((player) => !this.isAvailableTtr(player.ttr)).map((player) => player.name);
         },
         draftStatusState() {
             if (this.isDraftSyncing) {
@@ -3291,6 +3309,7 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
                 : [];
             if (serverMatches.length > 0) {
                 this.results = serverMatches.map((match, index) => ({
+                    matchType: match.matchType,
                     label: (typeof match?.name === 'string' && match.name.trim()) || this.getMatchFormationLabel(match, index) || `Spiel ${index + 1}`,
                     homeName: this.resolveMatchSide(match, index, 'home'),
                     guestName: this.resolveMatchSide(match, index, 'guest'),
@@ -3324,6 +3343,9 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
         ttrSnapshot(index) {
             return this.ttrSnapshots[index] || null;
         },
+        isAvailableTtr(value) {
+            return value !== null && value !== undefined && String(value).trim() !== '' && Number.isFinite(Number(value));
+        },
         normalizeTtrName(value) {
             return String(value || '').normalize('NFKD').replace(/[\u0300-\u036f]/g, '').replace(/[^\p{L}\p{N}]+/gu, ' ').trim().toLocaleLowerCase('de-DE');
         },
@@ -3349,21 +3371,7 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
                         homeTeamName: this.meetingData?.homeTeamname,
                         guestTeamName: this.meetingData?.guestTeamname,
                     });
-                    const resolvedByKey = new Map((response.data?.players || []).map((player) => [`${player.side}:${this.normalizeTtrName(player.name)}`, player]));
-                    const players = ['home', 'guest'].flatMap((side) => this.ttrLineupPlayers(side).map((player, index) => ({
-                        side,
-                        name: [player.firstname || player.firstName, player.lastname || player.lastName].filter(Boolean).join(' '),
-                        nuLigaPersonId: player.nuLigaPersonId || null,
-                    ...resolvedByKey.get(`${side}:${this.normalizeTtrName([player.firstname || player.firstName, player.lastname || player.lastName].filter(Boolean).join(' '))}`),
-                        // Test-Aufstellungen sind Platzhalternamen. Nur nicht
-                        // über die API auflösbare Spieler erhalten Testwerte.
-                        ttr: Number.isFinite(Number(resolvedByKey.get(`${side}:${this.normalizeTtrName([player.firstname || player.firstName, player.lastname || player.lastName].filter(Boolean).join(' '))}`)?.ttr))
-                            ? Number(resolvedByKey.get(`${side}:${this.normalizeTtrName([player.firstname || player.firstName, player.lastname || player.lastName].filter(Boolean).join(' '))}`)?.ttr)
-                            : (side === 'home' ? 1320 - index * 23 : 1345 - index * 19),
-                        adjustmentConstant: resolvedByKey.get(`${side}:${this.normalizeTtrName([player.firstname || player.firstName, player.lastname || player.lastName].filter(Boolean).join(' '))}`)?.adjustmentConstant || 16,
-                        source: resolvedByKey.get(`${side}:${this.normalizeTtrName([player.firstname || player.firstName, player.lastname || player.lastName].filter(Boolean).join(' '))}`)?.source || 'test',
-                    })));
-                    this.applyTtrPreviewPlayers(players);
+                    this.applyTtrPreviewPlayers(Array.isArray(response.data?.players) ? response.data.players : []);
                     return;
                 }
                 if (!this.match?.id) {
@@ -3391,14 +3399,22 @@ Wir wünschen den Spielen einen schönen, spannenden und fairen Verlauf und begr
                 if (this.isTtrDouble(match)) return;
                 const home = index.get(`home:${this.normalizeTtrName(match.homeName)}`);
                 const guest = index.get(`guest:${this.normalizeTtrName(match.guestName)}`);
-                if (!Number.isFinite(Number(home?.ttr)) || !Number.isFinite(Number(guest?.ttr))) return;
-                snapshots[resultIndex] = { homeTtr: Number(home.ttr), guestTtr: Number(guest.ttr), homeAdjustmentConstant: Number(home.adjustmentConstant || 16), guestAdjustmentConstant: Number(guest.adjustmentConstant || 16) };
+                snapshots[resultIndex] = {
+                    homeTtr: this.isAvailableTtr(home?.ttr) ? Number(home.ttr) : null,
+                    guestTtr: this.isAvailableTtr(guest?.ttr) ? Number(guest.ttr) : null,
+                    homeAdjustmentConstant: Number(home?.adjustmentConstant || 16),
+                    guestAdjustmentConstant: Number(guest?.adjustmentConstant || 16),
+                };
             });
             this.ttrSnapshots = snapshots;
         },
         isTtrDouble(match) {
-            const label = String(match?.label || '').toUpperCase();
-            return label.includes('D') || String(match?.homeName || '').includes(' / ') || String(match?.guestName || '').includes(' / ');
+            const type = String(match?.matchType || '').toUpperCase();
+            if (type === 'DOUBLE' || type === 'DOUBLES') return true;
+            if (type === 'SINGLE' || type === 'SINGLES') return false;
+            const label = String(match?.label || '');
+            return /\b(?:DOPPEL|DOUBLES?)\b|(?:^|[\s–-])D[AB]?\d+(?=$|[\s–-])/i.test(label) ||
+                String(match?.homeName || '').includes(' / ') || String(match?.guestName || '').includes(' / ');
         },
         ttrWinner(match) {
             if (!match?.completed) return null;
diff --git a/frontend/tests/ttrPreview.test.mjs b/frontend/tests/ttrPreview.test.mjs
new file mode 100644
index 00000000..1ea83bb6
--- /dev/null
+++ b/frontend/tests/ttrPreview.test.mjs
@@ -0,0 +1,86 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import vm from 'node:vm';
+import { calculateTtrChange } from '../src/services/ttrCalculator.mjs';
+
+const source = readFileSync(new URL('../src/components/MatchReportApiDialog.vue', import.meta.url), 'utf8');
+const script = source.match(/<script>([\s\S]*?)<\/script>/)[1]
+    .replace(/^import .*;\n/gm, '')
+    .replace('export default', 'globalThis.component =');
+const requests = [];
+const context = vm.createContext({ console, calculateTtrChange, apiClient: {
+    async post(url, body) {
+        requests.push({ url, body });
+        return { data: { players: [] } };
+    },
+} });
+vm.runInContext(script, context);
+const { methods, computed } = context.component;
+
+function dialog() {
+    return Object.assign({}, methods, {
+        results: [
+            { label: 'D1-D1', homeName: 'Anton Schottdorf / Anna Wolf', guestName: 'Yumin Kim / Timo Engler' },
+            { label: '1. Einzel der Runde', homeName: 'Anton Schottdorf', guestName: 'Yumin Kim', completed: false },
+        ],
+        ttrSnapshots: {},
+        ttrPlayers: [],
+    });
+}
+
+test('singles with a D in their title are retained while double formation labels are excluded', () => {
+    const report = dialog();
+    assert.equal(report.isTtrDouble(report.results[0]), true);
+    assert.equal(report.isTtrDouble(report.results[1]), false);
+    assert.equal(report.isTtrDouble({ label: 'DA2 – DB2' }), true);
+    assert.equal(report.isTtrDouble({ label: 'Doppel 1' }), true);
+    assert.equal(report.isTtrDouble({ label: '3. Runde', matchType: 'SINGLE' }), false);
+});
+
+test('missing TTR values retain the single and are not treated as zero', () => {
+    const report = dialog();
+    report.applyTtrPreviewPlayers([
+        { side: 'home', name: 'Anton Schottdorf', ttr: 1300 },
+        { side: 'guest', name: 'Yumin Kim', ttr: null },
+    ]);
+    const rows = computed.ttrSingles.call(report);
+    assert.equal(rows.length, 1);
+    assert.equal(rows[0].homeTtr, 1300);
+    assert.equal(rows[0].guestTtr, null);
+    assert.equal(rows[0].preview, null);
+    assert.equal(computed.ttrUnavailablePlayers.call(report)[0], 'Yumin Kim');
+});
+
+test('available ratings produce the preview and a completed single uses the entered result', () => {
+    const report = dialog();
+    report.applyTtrPreviewPlayers([
+        { side: 'home', name: 'Anton Schottdorf', ttr: 1300 },
+        { side: 'guest', name: 'Yumin Kim', ttr: 1300 },
+    ]);
+    assert.equal(computed.ttrSingles.call(report)[0].preview.homeWin.displayChange, 8);
+    report.results[1].completed = true;
+    report.getPlayerSetWins = (_match, side) => side === 'home' ? 3 : 0;
+    const row = computed.ttrSingles.call(report)[0];
+    assert.equal(row.actual.home.displayChange, 8);
+    assert.equal(row.actual.guest.displayChange, -8);
+});
+
+test('standalone test mode calls the API and keeps real pairings without inventing ratings', async () => {
+    const report = dialog();
+    Object.assign(report, {
+        standaloneTest: true,
+        canOpenTtrPreview: true,
+        meetingDetails: {},
+        meetingData: {},
+        $store: { getters: { currentClub: 1 } },
+        ttrLineupPlayers: () => [],
+    });
+    await report.loadTtrPreview();
+    assert.equal(requests.at(-1).url, '/matches/ttr-preview/standalone');
+    assert.equal(report.ttrError, '');
+    const rows = computed.ttrSingles.call(report);
+    assert.equal(rows.length, 1);
+    assert.equal(rows[0].homeTtr, null);
+    assert.equal(rows[0].preview, null);
+});