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| 1st(1st leg) | Sarmiento de Junín | - | Brown de Adrogué | 1:1 (0:1) | ||
| 2nd (2nd leg) | Brown de Adrogué | - | Sarmiento de Junín | 2:4 (1:1) | ||
| 1st(1st leg): 13/05/2018 19:10 | 2nd (2nd leg): 20/05/2018 18:35 | Winner: Sarmiento de Junín | ||||
| 1st(1st leg) | Agropecuario Argentino | - | San Martín de Tucumán | 0:0 (0:0) | ||
| 2nd (2nd leg) | San Martín de Tucumán | - | Agropecuario Argentino | 3:0 (2:0) | ||
| 1st(1st leg): 14/05/2018 01:10 | 2nd (2nd leg): 20/05/2018 21:00 | Winner: San Martín de Tucumán | ||||
