Mazatlan and Obregon are one win away.

MAZATLAN 4, MEXICALI 3 IN MAZATLAN

Game summary:  Mexicali led 3-0 after six, but Mazatlan scored four in the seventh.  Chris Walker hit a two-run double and Oswaldo Morejon drove in the go-ahead run with a triple.

Mexicali:  Yuniesky Betancourt was 2-for-3 with a home run.  Ricky Alvarez was 1-for-2 with two RBIs.

Mazatlan:  Luis Vazquez struck out four in 3.2 scoreless innings, giving up one hit and no walks.  Morejon was 2-for-3 with a walk.

OBREGON 3, GUASAVE 1 IN OBREGON

Game summary:  Obregon scored three in the first and made it hold up.  Barbaro Canizares hit a two-run homer in the inning.

Guasave:  Ronny Paulino was 2-for-4 with a home run.  Leo Rosales pitched two shutout innings, giving up one hit.

Obregon:  Luis Mendoza struck out eight in six innings, allowing one run on four hits and a walk.  Agustin Murillo was 3-for-4 with a double and scored once.