| 1 | Thu 22 Aug | 172-1 v HäckenHäcken 1-2 1 FC Heidenheim | UEFA Europa Conference League Play-off |
| 2 | Sun 25 Aug | 172-0 v FC St PauliFC St Pauli 0-2 1 FC Heidenheim | German Bundesliga |
| 3 | Thu 29 Aug | 173-2 v Häcken1 FC Heidenheim 3-2 Häcken | UEFA Europa Conference League Play-off |
| 4 | Sun 1 Sep | 17 4-0 v FC Augsburg1 FC Heidenheim 4-0 FC Augsburg | German Bundesliga |
| 5 | Sat 21 Sep | 170-3 v SC Freiburg1 FC Heidenheim 0-3 SC Freiburg | German Bundesliga |
| 6 | Sat 19 Oct | 172-3 v Borussia MönchengladbachBorussia Mönchengladbach 3-2 1 FC Heidenheim | German Bundesliga |
| 7 | Thu 24 Oct | 171-0 v PafosPafos 0-1 1 FC Heidenheim | UEFA Europa Conference League Matchday 2 |
| 8 | Sat 2 Nov | 170-1 v Holstein KielHolstein Kiel 1-0 1 FC Heidenheim | German Bundesliga |
| 9 | Thu 7 Nov | 172-0 v Heart of MidlothianHeart of Midlothian 0-2 1 FC Heidenheim | UEFA Europa Conference League Matchday 3 |
| 10 | Sun 10 Nov | 171-3 v VfL Wolfsburg1 FC Heidenheim 1-3 VfL Wolfsburg | German Bundesliga |
| 11 | Sat 23 Nov | 172-5 v Bayer 04 LeverkusenBayer 04 Leverkusen 5-2 1 FC Heidenheim | German Bundesliga |
| 12 | Thu 28 Nov | 170-2 v Chelsea1 FC Heidenheim 0-2 Chelsea | UEFA Europa Conference League Matchday 4 |
| 13 | Sun 1 Dec | 170-4 v Eintracht Frankfurt1 FC Heidenheim 0-4 Eintracht Frankfurt | German Bundesliga |
| 14 | Sat 7 Dec | 172-4 v Bayern MunichBayern Munich 4-2 1 FC Heidenheim | German Bundesliga |
| 15 | Thu 12 Dec | 171-3 v İstanbul Başakşehirİstanbul Başakşehir 3-1 1 FC Heidenheim | UEFA Europa Conference League Matchday 5 |
| 16 | Sun 15 Dec | 171-3 v VfB Stuttgart1 FC Heidenheim 1-3 VfB Stuttgart | German Bundesliga |
| 17 | Thu 19 Dec | 171-1 v St Gallen1 FC Heidenheim 1-1 St Gallen | UEFA Europa Conference League Matchday 6 |
| 18 | Sun 22 Dec | 170-2 v VfL BochumVfL Bochum 2-0 1 FC Heidenheim | German Bundesliga |
| 19 | Sat 1 Feb | 171-2 v Borussia Dortmund1 FC Heidenheim 1-2 Borussia Dortmund | German Bundesliga |
| 20 | Sat 8 Feb | 170-1 v SC FreiburgSC Freiburg 1-0 1 FC Heidenheim | German Bundesliga |
| 21 | Thu 13 Feb | 172-1 v FC CopenhagenFC Copenhagen 1-2 1 FC Heidenheim | UEFA Europa Conference League Knockout Round |
| 22 | Sun 16 Feb | 170-2 v Mainz 051 FC Heidenheim 0-2 Mainz 05 | German Bundesliga |
| 23 | Thu 20 Feb | 171-3 v FC Copenhagen1 FC Heidenheim 1-3 FC Copenhagen | UEFA Europa Conference League Knockout Round |
| 24 | Sun 23 Feb | 172-2 v RB LeipzigRB Leipzig 2-2 1 FC Heidenheim | German Bundesliga |
| 25 | Sat 1 Mar | 170-3 v Borussia Mönchengladbach1 FC Heidenheim 0-3 Borussia Mönchengladbach | German Bundesliga |
| 26 | Sun 9 Mar | 171-1 v 1899 Hoffenheim1899 Hoffenheim 1-1 1 FC Heidenheim | German Bundesliga |
| 27 | Fri 25 Apr | 171-0 v VfB StuttgartVfB Stuttgart 0-1 1 FC Heidenheim | German Bundesliga |
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