Gimnasia de La Plata beat Unión 1-0. The winner had to work for it: 1 from 12 shots. Best on the pitch was B. Alemán, rated 8.3.

1. 0'
   ⚽Kick-off
   Torneo 2021
   ARG 4-4-2·3-4-3 ARG
   Coach: N. Gorosito · J. AzconzábalReferee: D. Abal📍 Estadio Juan Carmelo Zerillo
2. 1. First half
   2. 43'
      ARG
      Yellow card
      J. Nardoni
3. 1. Second half
   2. 46'
      ARG
      Yellow card
      F. Calderón
   3. 55'
      ARG
      GOOOAL!G. GuiffreyAssist: B. Alemán
   4. 70'
      ARG
      Substitution
      ▲J. Garcia▼D. Juárez
   5. 70'
      ARG
      Substitution
      ▲M. Luna Diale▼E. Canete
   6. 73'
      ARG
      Yellow card
      J. Garcia
   7. 74'
      ARG
      Substitution
      ▲M. Insaurralde▼E. Ramirez
   8. 81'
      ARG
      Substitution
      ▲E. Roldan▼G. Gonzalez
   9. 81'
      ARG
      Substitution
      ▲K. Zenon▼J. Nardoni
   10. 85'
       ARG
       Substitution
       ▲E. Cecchini▼Luis Rodríguez
   11. 90+1'
       ARG
       Substitution
       ▲M. Pitton▼J. Portillo
   12. 90+4'
       ARG
       Substitution
       ▲G. Fratta▼J. Carbonero
   13. 90+6'
       ARG
       Yellow card
       L. Contín