San Lorenzo beat Lanús 1-4. Diego García scored 2 goals.

1. 0'
   ⚽Kick-off
   Primera División 1931 (LAF)
   Referee: José Bartolomé Macías📍 Boca JuniorsAttendance: 6,100
2. 1. First half
   2. 1'
      ARG
      GOOOAL!DGDiego García
   3. 15'
      ARG
      GOOOAL!SMSantiago Martin
   4. 21'
      ARG
      GOOOAL!ABAlberto Bussi
3. 1. Second half
   2. 80'
      ARG
      GOOOAL!SMSantiago Martin
   3. 86'
      ARG
      GOOOAL!DGDiego García