| 1 | Sat 14 Aug 2021 | 321-1 v Bayer 04 Leverkusen1. FC Union Berlin 1-1 Bayer 04 Leverkusen | German Bundesliga |
| 2 | Sun 22 Aug 2021 | 322-2 v 1899 Hoffenheim1899 Hoffenheim 2-2 1. FC Union Berlin | German Bundesliga |
| 3 | Thu 26 Aug 2021 | 320-0 v KuPS Kuopio1. FC Union Berlin 0-0 KuPS Kuopio | UEFA Europa Conference League |
| 4 | Sat 11 Sep 2021 | 112-0 v 1899 Hoffenheim1899 Hoffenheim 0-2 Mainz 05 | German Bundesliga |
| 5 | Sat 18 Sep 2021 | 110-0 v SC FreiburgMainz 05 0-0 SC Freiburg | German Bundesliga |
| 6 | Sat 25 Sep 2021 | 110-1 v Bayer 04 LeverkusenBayer 04 Leverkusen 1-0 Mainz 05 | German Bundesliga |
| 7 | Sun 3 Oct 2021 | 111-2 v 1. FC Union BerlinMainz 05 1-2 1. FC Union Berlin | German Bundesliga |
| 8 | Sat 16 Oct 2021 | 11 1-3 v Borussia DortmundBorussia Dortmund 3-1 Mainz 05 | German Bundesliga |
| 9 | Fri 22 Oct 2021 | 114-1 v FC AugsburgMainz 05 4-1 FC Augsburg | German Bundesliga |
| 10 | Sat 30 Oct 2021 | 112-1 v Arminia BielefeldArminia Bielefeld 1-2 Mainz 05 | German Bundesliga |
| 11 | Fri 5 Nov 2021 | 111-1 v Borussia MönchengladbachMainz 05 1-1 Borussia Mönchengladbach | German Bundesliga |
| 12 | Fri 26 Nov 2021 | 111-2 v VfB StuttgartVfB Stuttgart 2-1 Mainz 05 | German Bundesliga |
| 13 | Sat 4 Dec 2021 | 113-0 v VfL WolfsburgMainz 05 3-0 VfL Wolfsburg | German Bundesliga |
| 14 | Sat 11 Dec 2021 | 111-2 v Bayern MunichBayern Munich 2-1 Mainz 05 | German Bundesliga |
| 15 | Tue 14 Dec 2021 | 114-0 v Hertha BerlinMainz 05 4-0 Hertha Berlin | German Bundesliga |
| 16 | Sat 18 Dec 2021 | 110-1 v Eintracht FrankfurtEintracht Frankfurt 1-0 Mainz 05 | German Bundesliga |
| 17 | Sat 12 Feb 2022 | 111-1 v SC FreiburgSC Freiburg 1-1 Mainz 05 | German Bundesliga |
| 18 | Fri 18 Feb 2022 | 11 3-2 v Bayer 04 LeverkusenMainz 05 3-2 Bayer 04 Leverkusen | German Bundesliga |
| 19 | Sat 26 Feb 2022 | 111-3 v 1. FC Union Berlin1. FC Union Berlin 3-1 Mainz 05 | German Bundesliga |
| 20 | Wed 16 Mar 2022 | 110-1 v Borussia DortmundMainz 05 0-1 Borussia Dortmund | German Bundesliga |
| 21 | Sat 19 Mar 2022 | 114-0 v Arminia BielefeldMainz 05 4-0 Arminia Bielefeld | German Bundesliga |
| 22 | Sun 3 Apr 2022 | 111-1 v Borussia MönchengladbachBorussia Mönchengladbach 1-1 Mainz 05 | German Bundesliga |
| 23 | Wed 6 Apr 2022 | 111-2 v FC AugsburgFC Augsburg 2-1 Mainz 05 | German Bundesliga |
| 24 | Sat 9 Apr 2022 | 112-3 v 1. FC Köln1. FC Köln 3-2 Mainz 05 | German Bundesliga |
| 25 | Sat 16 Apr 2022 | 110-0 v VfB StuttgartMainz 05 0-0 VfB Stuttgart | German Bundesliga |
| 26 | Fri 22 Apr 2022 | 110-5 v VfL WolfsburgVfL Wolfsburg 5-0 Mainz 05 | German Bundesliga |
| 27 | Sat 30 Apr 2022 | 113-1 v Bayern MunichMainz 05 3-1 Bayern Munich | German Bundesliga |
| 28 | Sat 7 May 2022 | 112-1 v Hertha BerlinHertha Berlin 1-2 Mainz 05 | German Bundesliga |
| 29 | Sat 14 May 2022 | 112-2 v Eintracht FrankfurtMainz 05 2-2 Eintracht Frankfurt | German Bundesliga |
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