| 1 | Thu 22 Aug | 33 2-1 v HäckenHäcken 1-2 1 FC Heidenheim | UEFA Europa Conference League Play-off |
| 2 | Sun 25 Aug | 33 2-0 v FC St PauliFC St Pauli 0-2 1 FC Heidenheim | German Bundesliga |
| 3 | Thu 29 Aug | 333-2 v Häcken1 FC Heidenheim 3-2 Häcken | UEFA Europa Conference League Play-off |
| 4 | Sun 1 Sep | 334-0 v FC Augsburg1 FC Heidenheim 4-0 FC Augsburg | German Bundesliga |
| 5 | Fri 13 Sep | 332-4 v Borussia DortmundBorussia Dortmund 4-2 1 FC Heidenheim | German Bundesliga |
| 6 | Sat 21 Sep | 330-3 v SC Freiburg1 FC Heidenheim 0-3 SC Freiburg | German Bundesliga |
| 7 | Sat 28 Sep | 332-0 v Mainz 05Mainz 05 0-2 1 FC Heidenheim | German Bundesliga |
| 8 | Thu 3 Oct | 332-1 v Olimpija Ljubljana1 FC Heidenheim 2-1 Olimpija Ljubljana | UEFA Europa Conference League Matchday 1 |
| 9 | Sun 6 Oct | 330-1 v RB Leipzig1 FC Heidenheim 0-1 RB Leipzig | German Bundesliga |
| 10 | Sat 19 Oct | 332-3 v Borussia MönchengladbachBorussia Mönchengladbach 3-2 1 FC Heidenheim | German Bundesliga |
| 11 | Thu 24 Oct | 331-0 v PafosPafos 0-1 1 FC Heidenheim | UEFA Europa Conference League Matchday 2 |
| 12 | Sun 27 Oct | 330-0 v 1899 Hoffenheim1 FC Heidenheim 0-0 1899 Hoffenheim | German Bundesliga |
| 13 | Thu 7 Nov | 33 2-0 v Heart of MidlothianHeart of Midlothian 0-2 1 FC Heidenheim | UEFA Europa Conference League Matchday 3 |
| 14 | Sat 23 Nov | 332-5 v Bayer 04 LeverkusenBayer 04 Leverkusen 5-2 1 FC Heidenheim | German Bundesliga |
| 15 | Thu 28 Nov | 330-2 v Chelsea1 FC Heidenheim 0-2 Chelsea | UEFA Europa Conference League Matchday 4 |
| 16 | Sun 1 Dec | 330-4 v Eintracht Frankfurt1 FC Heidenheim 0-4 Eintracht Frankfurt | German Bundesliga |
| 17 | Sat 7 Dec | 332-4 v Bayern MunichBayern Munich 4-2 1 FC Heidenheim | German Bundesliga |
| 18 | Thu 12 Dec | 33 1-3 v İstanbul Başakşehirİstanbul Başakşehir 3-1 1 FC Heidenheim | UEFA Europa Conference League Matchday 5 |
| 19 | Sun 16 Feb | 152-0 v 1 FC Heidenheim1 FC Heidenheim 0-2 Mainz 05 | German Bundesliga |
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