Cobresal U20 3-2 San Marcos de Arica U20 in the Campeonato Regional Formativo Sub-20, round 2 at Complejo Amador Donoso, Puente Alto.

Cobresal U20 won 3, drew 0 and lost 2 of their previous 5 matches (W–W–L–W–L), scoring 9 and conceding 10.

San Marcos de Arica U20 won 3, drew 1 and lost 1 of their previous 5 matches (L–W–W–D–W), scoring 9 and conceding 6.

The two sides have met 2 times: Cobresal U20 1 win, San Marcos de Arica U20 1, 0 draws.