Italy: Serie A - 1980-81
| Udinese beat Catanzaro 2-1 (H) on 23 Nov 1980 |
| Catanzaro beat Como Calcio 2-0 (H) on 5 Oct 1980 |
| Como Calcio beat Fiorentina 2-1 (H) on 23 Nov 1980 |
| Fiorentina beat Avellino 3-2 (A) on 21 Sep 1980 |
| Avellino beat Cagliari 2-1 (H) on 5 Oct 1980 |
| Cagliari beat Torino 2-1 (A) on 19 Oct 1980 |
| Torino beat Pistoiese 1-0 (H) on 14 Sep 1980 |
| Pistoiese beat Perugia 1-0 (H) on 23 Nov 1980 |
| Perugia beat Ascoli Calcio 3-0 (A) on 5 Oct 1980 |
| Ascoli Calcio beat Napoli 3-2 (H) on 21 Sep 1980 |
| Napoli beat Roma 4-0 (H) on 19 Oct 1980 |
| Roma beat Brescia Calcio 1-0 (H) on 21 Sep 1980 |
| Brescia Calcio beat Bologna 1-0 (A) on 9 Nov 1980 |
| Bologna beat Juventus 1-0 (A) on 5 Oct 1980 |
| Juventus beat Inter 2-1 (H) on 23 Nov 1980 |
| Inter beat Udinese 4-0 (A) on 14 Sep 1980 |
HWC: Thick arrows show the earliest chain of wins that passes through every team and returns to its start.