1900 - Championship Cup de la Argentine Association Football League
| Equipo | Pts | PJ | G | E | P | GF | GC | Dif |
| | | | | | | | | |
| 1 | English High School Athletic ⚽ | 11 | 6 | 5 | 1 | 0 | 18 | 3 | 15 |
| 2 | Lomas Athletic | 5 | 6 | 2 | 1 | 3 | 9 | 9 | 0 |
| 3 | Belgrano Athletic | 4 | 6 | 2 | 0 | 4 | 8 | 13 | -5 |
| 4 | Quilmes ⚽ | 4 | 6 | 2 | 0 | 4 | 9 | 19 | -10 |
1900 - Campeonato de Segunda División de la Argentine Association Football League
| Equipo | Pts | PJ | G | E | P | GF | GC | Dif |
| | | | | | | | | |
| 1 | Banfield | 14 | 8 | 6 | 2 | 0 | 25 | 9 | 16 |
| 2 | English High School Athletic "II" ⚽ | 11 | 8 | 5 | 1 | 2 |
|
|
|
| 3 | Belgrano Athletic "II" | 8 | 8 | 3 | 2 | 3 |
|
|
|
| 4 | Central Athletic ⚽ ❌ | 4 | 8 | 1 | 2 | 5 |
|
|
|
| 5 | Porteño | 3 | 8 | 1 | 1 | 6 |
|
|
|
Se desconocen varios scores.
1900 - Campeonato de Tercera División de la Argentine Association Football League
ANTES DE ESTE TORNEO:
-No se había realizado ningun torneo de Tercera División.
| Equipo | Pts | PJ | G | E | P | GF | GC | Dif |
| | | | | | | | | |
| 1 | English High School Athletic "III" ⚽ | | 8 | | | | | | |
| Escuela Nacional de Comercio ⚽ | | 8 | | | | | | |
| Lomas Academy ⚽ 🔺 | | 8 | | | | | | |
| Saint Andrew's Academy ⚽ | | 8 | | | | | | |
| Saint Andrew's Scots School ⚽ | | 8 | | | | | | |
Se desconocen los resultados de los encuentros. Solo se menciona a English High School Athletic III como el campeón.
1900 - Cup Tie Competition
ANTES DE ESTE TORNEO:
-No se habían realizado torneos en formato de copa en Argentina.
-Organizada por la Argentine Association Football League, incluía clubes de ésta, de la Uruguay Association Football League y clubes de Rosario que formarían a partir de 1905 la Liga Rosarina de Fútbol..
| | | | | | | | | | |
| 4TOS DE FINAL | | | SEMIFINALES | | | FINAL | | | |
| | | | | | | | | | |
| Albion Football Club | 1 | | | | | | | | |
| Central Uruguay Railway Cricket | 0 | | | | | | | | |
| | | | Albion Football Club | 0 | | | | | |
| | | | Belgrano Athletic | 1 | | | | | |
| Belgrano Athletic | 4 | | | | | | | | |
| Lomas Athletic | 1 | | | | | | | | |
| | | | | | | Belgrano Athletic | 2 | | |
| | | | | | | Rosario Athletic | 0 | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | Rosario Athletic | 3 | | | | | |
| | | | English High School Athletic | 1 | | | | | |
| English High School Athletic | 2 | | | | | | | | |
| Quilmes | 1 | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | |
| Equipo | Pts | PJ | G | E | P | GF | GC | Dif |
| | | | | | | | | |
| 1 | Belgrano Athletic | | 3 | 3 | 0 | 0 | 7 | 1 | 6 |
| 2 | Rosario Athletic | | 2 | 1 | 0 | 1 | 3 | 3 | 0 |
| 3 | Albion Football Club | | 2 | 1 | 0 | 1 | 1 | 1 | 0 |
| 4 | English High School Athletic | | 2 | 1 | 0 | 1 | 3 | 4 | -1 |
| 5 | Quilmes | | 1 | 0 | 0 | 1 | 1 | 2 | -1 |
| 6 | Central Uruguay Railway Cricket | | 1 | 0 | 0 | 1 | 0 | 1 | -1 |
| 7 | Lomas Athletic | | 1 | 0 | 0 | 1 | 1 | 4 | -3 |
