Italy: Serie A - 2012-13

Italy: Serie A - 2012-13 - Earliest Hamiltonian win cycle
Inter beat Juventus 3-1 (A) on 3 Nov 2012
Juventus beat Catania 1-0 (A) on 28 Oct 2012
Catania beat Parma 2-0 (H) on 7 Oct 2012
Parma beat Torino 3-1 (A) on 28 Oct 2012
Torino beat Atalanta 5-1 (A) on 30 Sep 2012
Atalanta beat Napoli 1-0 (H) on 31 Oct 2012
Napoli beat Fiorentina 2-1 (H) on 2 Sep 2012
Fiorentina beat Udinese 2-1 (H) on 25 Aug 2012
Udinese beat Milan 2-1 (H) on 23 Sep 2012
Milan beat Bologna 3-1 (A) on 1 Sep 2012
Bologna beat Roma 3-2 (A) on 16 Sep 2012
Roma beat Genoa 4-2 (A) on 21 Oct 2012
Genoa beat Lazio 1-0 (A) on 23 Sep 2012
Lazio beat Palermo 3-0 (H) on 2 Sep 2012
Palermo beat Chievo Verona 4-1 (H) on 30 Sep 2012
Chievo Verona beat Sampdoria 2-1 (H) on 6 Oct 2012
Sampdoria beat Pescara 3-2 (A) on 16 Sep 2012
Pescara beat Cagliari 2-1 (A) on 30 Sep 2012
Cagliari beat Siena 4-2 (H) on 31 Oct 2012
Siena beat Inter 2-0 (A) on 23 Sep 2012

HWC: Thick arrows show the earliest chain of wins that passes through every team and returns to its start.