| 1 | Sun 20 Sep 2020 | 51-3 v RB LeipzigRB Leipzig 3-1 Mainz 05 | German Bundesliga |
| 2 | Sat 26 Sep 2020 | 51-4 v VfB StuttgartMainz 05 1-4 VfB Stuttgart | German Bundesliga |
| 3 | Fri 2 Oct 2020 | 5 0-4 v 1. FC Union Berlin1. FC Union Berlin 4-0 Mainz 05 | German Bundesliga |
| 4 | Sat 17 Oct 2020 | 50-1 v Bayer 04 LeverkusenMainz 05 0-1 Bayer 04 Leverkusen | German Bundesliga |
| 5 | Sat 24 Oct 2020 | 52-3 v Borussia MönchengladbachMainz 05 2-3 Borussia Mönchengladbach | German Bundesliga |
| 6 | Sat 31 Oct 2020 | 51-3 v FC AugsburgFC Augsburg 3-1 Mainz 05 | German Bundesliga |
| 7 | Sat 7 Nov 2020 | 52-2 v FC Schalke 04Mainz 05 2-2 FC Schalke 04 | German Bundesliga |
| 8 | Sun 22 Nov 2020 | 53-1 v SC FreiburgSC Freiburg 1-3 Mainz 05 | German Bundesliga |
| 9 | Sun 29 Nov 2020 | 51-1 v 1899 HoffenheimMainz 05 1-1 1899 Hoffenheim | German Bundesliga |
| 10 | Sat 5 Dec 2020 | 51-2 v Arminia BielefeldArminia Bielefeld 2-1 Mainz 05 | German Bundesliga |
| 11 | Sat 12 Dec 2020 | 50-1 v 1. FC KölnMainz 05 0-1 1. FC Köln | German Bundesliga |
| 12 | Sat 19 Dec 2020 | 50-1 v Werder BremenMainz 05 0-1 Werder Bremen | German Bundesliga |
| 13 | Sun 3 Jan 2021 | 5 2-5 v Bayern MunichBayern Munich 5-2 Mainz 05 | German Bundesliga |
| 14 | Sat 9 Jan 2021 | 50-2 v Eintracht FrankfurtMainz 05 0-2 Eintracht Frankfurt | German Bundesliga |
| 15 | Sat 16 Jan 2021 | 51-1 v Borussia DortmundBorussia Dortmund 1-1 Mainz 05 | German Bundesliga |
| 16 | Tue 19 Jan 2021 | 5 0-2 v VfL WolfsburgMainz 05 0-2 VfL Wolfsburg | German Bundesliga |
| 17 | Fri 29 Jan 2021 | 50-2 v VfB StuttgartVfB Stuttgart 2-0 Mainz 05 | German Bundesliga |
| 18 | Sat 13 Feb 2021 | 52-2 v Bayer 04 LeverkusenBayer 04 Leverkusen 2-2 Mainz 05 | German Bundesliga |
| 19 | Sat 20 Feb 2021 | 52-1 v Borussia MönchengladbachBorussia Mönchengladbach 1-2 Mainz 05 | German Bundesliga |
| 20 | Sun 28 Feb 2021 | 50-1 v FC AugsburgMainz 05 0-1 FC Augsburg | German Bundesliga |
| 21 | Fri 5 Mar 2021 | 50-0 v FC Schalke 04FC Schalke 04 0-0 Mainz 05 | German Bundesliga |
| 22 | Sat 13 Mar 2021 | 51-0 v SC FreiburgMainz 05 1-0 SC Freiburg | German Bundesliga |
| 23 | Sun 21 Mar 2021 | 52-1 v 1899 Hoffenheim1899 Hoffenheim 1-2 Mainz 05 | German Bundesliga |
| 24 | Sat 3 Apr 2021 | 51-1 v Arminia BielefeldMainz 05 1-1 Arminia Bielefeld | German Bundesliga |
| 25 | Sun 11 Apr 2021 | 53-2 v 1. FC Köln1. FC Köln 2-3 Mainz 05 | German Bundesliga |
| 26 | Wed 21 Apr 2021 | 5 1-0 v Werder BremenWerder Bremen 0-1 Mainz 05 | German Bundesliga |
| 27 | Sat 24 Apr 2021 | 52-1 v Bayern MunichMainz 05 2-1 Bayern Munich | German Bundesliga |
| 28 | Mon 3 May 2021 | 51-1 v Hertha BerlinMainz 05 1-1 Hertha Berlin | German Bundesliga |
| 29 | Sun 9 May 2021 | 51-1 v Eintracht FrankfurtEintracht Frankfurt 1-1 Mainz 05 | German Bundesliga |
| 30 | Sun 16 May 2021 | 51-3 v Borussia DortmundMainz 05 1-3 Borussia Dortmund | German Bundesliga |
| 31 | Sat 22 May 2021 | 5 3-2 v VfL WolfsburgVfL Wolfsburg 2-3 Mainz 05 | German Bundesliga |
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