| agost del 202319 d’ag. |  Bundesliga | Borussia Dortmund 1–0 1. FC KölnRegular Season - 1 | D |
| 26 d’ag. | Bundesliga | 1. FC Köln1–2 VfL WolfsburgRegular Season - 2 | D |
| setembre del 202303 de set. | Bundesliga | Eintracht Frankfurt 1–11. FC KölnRegular Season - 3 | E |
| 16 de set. | Bundesliga | 1. FC Köln1–3 1899 HoffenheimRegular Season - 4 | D |
| 23 de set. | Bundesliga | Werder Bremen 2–11. FC KölnRegular Season - 5 | D |
| 30 de set. | Bundesliga | 1. FC Köln0–2 VfB StuttgartRegular Season - 6 | D |
| octubre del 202308 d’oct. | Bundesliga | Bayer Leverkusen 3–01. FC KölnRegular Season - 7 | D |
| 22 d’oct. | Bundesliga | 1. FC Köln3–1 Borussia MönchengladbachRegular Season - 8 | V |
| 28 d’oct. | Bundesliga | RB Leipzig 6–01. FC KölnRegular Season - 9 | D |
| novembre del 202304 de nov. | Bundesliga | 1. FC Köln1–1 FC AugsburgRegular Season - 10 | E |
| 11 de nov. | Bundesliga | VfL Bochum 1–11. FC KölnRegular Season - 11 | E |
| 24 de nov. | Bundesliga | 1. FC Köln0–1 Bayern MünchenRegular Season - 12 | D |
| desembre del 202301 de des. | Bundesliga | SV Darmstadt 98 0–11. FC KölnRegular Season - 13 | V |
| 10 de des. | Bundesliga | 1. FC Köln0–0 FSV Mainz 05Regular Season - 14 | E |
| 17 de des. | Bundesliga | SC Freiburg 2–01. FC KölnRegular Season - 15 | D |
| 20 de des. | Bundesliga | Union Berlin 2–01. FC KölnRegular Season - 16 | D |
| gener del 202413 de gen. | Bundesliga | 1. FC Köln1–1 1. FC HeidenheimRegular Season - 17 | E |
| 20 de gen. | Bundesliga | 1. FC Köln0–4Borussia DortmundRegular Season - 18 | D |
| 27 de gen. | Bundesliga | VfL Wolfsburg1–11. FC KölnRegular Season - 19 | E |
| febrer del 202403 de febr. | Bundesliga | 1. FC Köln2–0Eintracht FrankfurtRegular Season - 20 | V |
| 11 de febr. | Bundesliga | 1899 Hoffenheim1–11. FC KölnRegular Season - 21 | E |
| 16 de febr. | Bundesliga | 1. FC Köln0–1Werder BremenRegular Season - 22 | D |
| 24 de febr. | Bundesliga | VfB Stuttgart1–11. FC KölnRegular Season - 23 | E |
| març del 202403 de març | Bundesliga | 1. FC Köln0–2Bayer LeverkusenRegular Season - 24 | D |
| 09 de març | Bundesliga | Borussia Mönchengladbach3–31. FC KölnRegular Season - 25 | E |
| 15 de març | Bundesliga | 1. FC Köln1–5RB LeipzigRegular Season - 26 | D |
| 31 de març | Bundesliga | FC Augsburg1–11. FC KölnRegular Season - 27 | E |
| abril del 202406 d’abr. | Bundesliga | 1. FC Köln2–1VfL BochumRegular Season - 28 | V |
| 13 d’abr. | Bundesliga | Bayern München2–01. FC KölnRegular Season - 29 | D |
| 20 d’abr. | Bundesliga | 1. FC Köln0–2SV Darmstadt 98Regular Season - 30 | D |
| 28 d’abr. | Bundesliga | FSV Mainz 051–11. FC KölnRegular Season - 31 | E |
| maig del 202404 de maig | Bundesliga | 1. FC Köln0–0SC FreiburgRegular Season - 32 | E |
| 11 de maig | Bundesliga | 1. FC Köln3–2Union BerlinRegular Season - 33 | V |
| 18 de maig | Bundesliga | 1. FC Heidenheim4–11. FC KölnRegular Season - 34 | D |
