With both teams having won one game each, a playoff match had to be played at Estadio Nacional in Santiago, Chile. Peñarol crowned champion there after beating América 1–0 at the end of extra time.[1]
The finals was played over two legs; home and away. The team that accumulated the most points —two for a win, one for a draw, zero for a loss— after the two legs was crowned champion. If the two teams were tied on points after the second leg, a playoff in a neutral would become the next tie-breaker. Goal difference was used as a last resort.