| 1 | Sun 25 Aug | 5 2-0 v FC St PauliFC St Pauli 0-2 1 FC Heidenheim | German Bundesliga |
| 2 | Sun 1 Sep | 54-0 v FC Augsburg1 FC Heidenheim 4-0 FC Augsburg | German Bundesliga |
| 3 | Fri 13 Sep | 52-4 v Borussia DortmundBorussia Dortmund 4-2 1 FC Heidenheim | German Bundesliga |
| 4 | Sat 21 Sep | 50-3 v SC Freiburg1 FC Heidenheim 0-3 SC Freiburg | German Bundesliga |
| 5 | Sat 28 Sep | 5 2-0 v Mainz 05Mainz 05 0-2 1 FC Heidenheim | German Bundesliga |
| 6 | Sun 6 Oct | 50-1 v RB Leipzig1 FC Heidenheim 0-1 RB Leipzig | German Bundesliga |
| 7 | Sat 19 Oct | 5 2-3 v Borussia MönchengladbachBorussia Mönchengladbach 3-2 1 FC Heidenheim | German Bundesliga |
| 8 | Sun 27 Oct | 50-0 v 1899 Hoffenheim1 FC Heidenheim 0-0 1899 Hoffenheim | German Bundesliga |
| 9 | Sat 2 Nov | 5 0-1 v Holstein KielHolstein Kiel 1-0 1 FC Heidenheim | German Bundesliga |
| 10 | Sun 10 Nov | 51-3 v VfL Wolfsburg1 FC Heidenheim 1-3 VfL Wolfsburg | German Bundesliga |
| 11 | Sat 23 Nov | 52-5 v Bayer 04 LeverkusenBayer 04 Leverkusen 5-2 1 FC Heidenheim | German Bundesliga |
| 12 | Thu 28 Nov | 50-2 v Chelsea1 FC Heidenheim 0-2 Chelsea | UEFA Europa Conference League Matchday 4 |
| 13 | Sun 1 Dec | 50-4 v Eintracht Frankfurt1 FC Heidenheim 0-4 Eintracht Frankfurt | German Bundesliga |
| 14 | Sat 7 Dec | 52-4 v Bayern MunichBayern Munich 4-2 1 FC Heidenheim | German Bundesliga |
| 15 | Sun 15 Dec | 5 1-3 v VfB Stuttgart1 FC Heidenheim 1-3 VfB Stuttgart | German Bundesliga |
| 16 | Thu 19 Dec | 51-1 v St Gallen1 FC Heidenheim 1-1 St Gallen | UEFA Europa Conference League Matchday 6 |
| 17 | Sat 11 Jan | 52-0 v 1 FC Union Berlin1 FC Heidenheim 2-0 1 FC Union Berlin | German Bundesliga |
| 18 | Wed 15 Jan | 53-3 v Werder BremenWerder Bremen 3-3 1 FC Heidenheim | German Bundesliga |
| 19 | Sat 18 Jan | 50-2 v FC St Pauli1 FC Heidenheim 0-2 FC St Pauli | German Bundesliga |
| 20 | Sat 25 Jan | 51-2 v FC AugsburgFC Augsburg 2-1 1 FC Heidenheim | German Bundesliga |
| 21 | Sat 1 Feb | 51-2 v Borussia Dortmund1 FC Heidenheim 1-2 Borussia Dortmund | German Bundesliga |
| 22 | Sat 8 Feb | 5 0-1 v SC FreiburgSC Freiburg 1-0 1 FC Heidenheim | German Bundesliga |
| 23 | Sun 23 Feb | 5 2-2 v RB LeipzigRB Leipzig 2-2 1 FC Heidenheim | German Bundesliga |
| 24 | Sat 1 Mar | 5 0-3 v Borussia Mönchengladbach1 FC Heidenheim 0-3 Borussia Mönchengladbach | German Bundesliga |
| 25 | Sun 9 Mar | 51-1 v 1899 Hoffenheim1899 Hoffenheim 1-1 1 FC Heidenheim | German Bundesliga |
| 26 | Sun 16 Mar | 53-1 v Holstein Kiel1 FC Heidenheim 3-1 Holstein Kiel | German Bundesliga |
| 27 | Sat 29 Mar | 51-0 v VfL WolfsburgVfL Wolfsburg 0-1 1 FC Heidenheim | German Bundesliga |
| 28 | Sat 5 Apr | 50-1 v Bayer 04 Leverkusen1 FC Heidenheim 0-1 Bayer 04 Leverkusen | German Bundesliga |
| 29 | Sun 13 Apr | 50-3 v Eintracht FrankfurtEintracht Frankfurt 3-0 1 FC Heidenheim | German Bundesliga |
| 30 | Sat 19 Apr | 5 0-4 v Bayern Munich1 FC Heidenheim 0-4 Bayern Munich | German Bundesliga |
| 31 | Fri 25 Apr | 51-0 v VfB StuttgartVfB Stuttgart 0-1 1 FC Heidenheim | German Bundesliga |
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