River Plate beat Argentinos Juniors 4-3. Emilio Castro scored 2 goals.

1. 0'
   ⚽Kick-off
   Primera División 1931 (LAF)
   Referee: Enrique LiñeyroAttendance: 6,300
2. 1. First half
   2. 26'
      ARG
      GOOOAL!PMPedro Marassi
3. 1. Second half
   2. 46'
      ARG
      GOOOAL!PLPedro Lago
   3. 52'
      ARG
      GOOOAL!ECEmilio CastroPenalty
   4. 64'
      ARG
      GOOOAL!ECEmilio CastroPenalty
   5. 65'
      ARG
      GOOOAL!JGJose O. Gatti
   6. 71'
      ARG
      GOOOAL!JRJose L. Rodriguez
   7. 82'
      ARG
      GOOOAL!EREnrique Ruffo