Boca Juniors beat San Lorenzo 4-1. Bernardo José Gandulla scored 2 goals.

1. 0'
   ⚽Kick-off
   Primera División 1940
   Referee: Abbene
2. 1. First half
   2. 25'
      ARG
      GOOOAL!RERaul Emeal
   3. 31'
      ARG
      GOOOAL!JSJaime Sarlanga
   4. 33'
      ARG
      GOOOAL!BGBernardo José Gandulla
3. 1. Second half
   2. 72'
      ARG
      GOOOAL!BGBernardo José Gandulla
   3. 78'
      ARG
      GOOOAL!JFJose Fabrini