Unión beat Olimpo Bahia Blanca 2-0. The winner had to work for it: 2 from 21 shots. Olimpo Bahia Blanca played with ten from minute 67. Best on the pitch was F. Soldano, rated 9.5.

1. 0'
   ⚽Kick-off
   Superliga 2017-18
   ARG 4-4-2·4-4-2 ARG
   Coach: L. Madelón · M. SciacquaReferee: Pedro Arganaraz, Argentina📍 Estadio 15 de Abril
2. 1. First half
   2. 26'
      ARG
      Substitution
      ▲D. Martinez▼Emanuel Brítez
   3. 27'
      ARG
      Yellow card
      N. Herranz
   4. 42'
      ARG
      Yellow card
      Jonathan Blanco
3. 1. Second half
   2. 46'
      ARG
      GOOOAL!F. SoldanoAssist: N. Acevedo
   3. 48'
      ARG
      Yellow card
      Y. Gómez
   4. 53'
      ARG
      GOOOAL!L. GambaAssist: F. Soldano
   5. 56'
      ARG
      Substitution
      ▲R. Lentini▼L. Vila
   6. 58'
      ARG
      Substitution
      ▲M. Fornari▼M. Rosales
   7. 64'
      ARG
      Substitution
      ▲D. Depetris▼T. Costa
   8. 67'
      ARG
      Yellow card
      N. Herranz
   9. 67'
      ARG
      Red card
      N. Herranz
   10. 75'
       ARG
       Substitution
       ▲J. Vitale▼D. Zabala
   11. 80'
       ARG
       Substitution
       ▲G. Méndez▼L. Gamba