| Milan beat Inter 1-0 (A) on 27 Feb 2005 |
| Inter beat Sampdoria 3-2 (H) on 9 Jan 2005 |
| Sampdoria beat Livorno 2-0 (H) on 3 Oct 2004 |
| Livorno beat Bologna 1-0 (H) on 24 Oct 2004 |
| Bologna beat Cagliari 1-0 (H) on 22 Jan 2005 |
| Cagliari beat Lazio 3-2 (A) on 28 Nov 2004 |
| Lazio beat Chievo Verona 1-0 (A) on 20 Feb 2005 |
| Chievo Verona beat Palermo 2-1 (H) on 12 Dec 2004 |
| Palermo beat Lecce 3-2 (H) on 20 Feb 2005 |
| Lecce beat Atalanta 1-0 (H) on 23 Jan 2005 |
| Atalanta beat Fiorentina 1-0 (H) on 6 Jan 2005 |
| Fiorentina beat Reggina Calcio 2-1 (A) on 27 Oct 2004 |
| Reggina Calcio beat Juventus 2-1 (H) on 6 Nov 2004 |
| Juventus beat Siena 3-0 (A) on 23 Oct 2004 |
| Siena beat Brescia Calcio 1-0 (A) on 27 Oct 2004 |
| Brescia Calcio beat Parma 3-1 (H) on 17 Oct 2004 |
| Parma beat Udinese 1-0 (H) on 29 Jan 2005 |
| Udinese beat Roma 3-0 (A) on 10 Nov 2004 |
| Roma beat Messina 3-2 (H) on 30 Jan 2005 |
| Messina beat Milan 2-1 (A) on 22 Sep 2004 |
HWC: Thick arrows show the earliest chain of wins that passes through every team and returns to its start.