Argentina: Tier 1 - 1989-90

Argentina: Tier 1 - 1989-90 - Earliest Hamiltonian win cycle
Unión de Santa Fe beat San Lorenzo 3-2 (A) on 22 Oct 1989
San Lorenzo beat Gimnasia de La Plata 1-0 (A) on 13 Aug 1989
Gimnasia de La Plata beat River Plate 1-0 (H) on 24 Sep 1989
River Plate beat Racing Club 3-1 (H) on 17 Sep 1989
Racing Club beat Rosario Central 2-1 (H) on 13 Sep 1989
Rosario Central beat Talleres de Córdoba 1-0 (H) on 10 Sep 1989
Talleres de Córdoba beat Racing Córdoba 1-0 (H) on 3 Sep 1989
Racing Córdoba beat Vélez Sarsfield 1-0 (H) on 22 Oct 1989
Vélez Sarsfield beat Chaco For Ever 4-1 (H) on 15 Oct 1989
Chaco For Ever beat Deportivo Español 2-1 (H) on 8 Oct 1989
Deportivo Español beat Boca Juniors 1-0 (H) on 27 Aug 1989
Boca Juniors beat Independiente 1-0 (H) on 13 Sep 1989
Independiente beat Argentinos Juniors 4-3 (H) on 17 Sep 1989
Argentinos Juniors beat Newell's Old Boys 2-1 (A) on 15 Oct 1989
Newell's Old Boys beat Instituto Córdoba 1-0 (A) on 1 Oct 1989
Instituto Córdoba beat Deportivo Mandiyú 2-0 (H) on 10 Sep 1989
Deportivo Mandiyú beat Ferro Carril Oeste 1-0 (H) on 20 Aug 1989
Ferro Carril Oeste beat Platense 1-0 (H) on 17 Sep 1989
Platense beat Estudiantes 1-0 (A) on 1 Oct 1989
Estudiantes beat Unión de Santa Fe 4-2 (H) on 10 Sep 1989

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