Staying alive.

GUASAVE 4, OBREGON 3 IN GUASAVE (11 INNINGS)

Game summary: Guasave scored two in the sixth to tie the game at three. It stayed that way until Eduardo Arredondo hit a two-out walk-off homer.

Obregon: Barbaro Canizares was 2-for-4 with a home run, a double, and two walks. Carlos Valencia was 2-for-6 with a double.

Guasave: Sean Gleason struck out three in three shutout innings, allowing two hits and two walks. Ronny Paulino was 2-for-4 with a double.

MEXICALI 6, MAZATLAN 5 IN MEXICALI

Game summary: Mazatlan led 5-3 after seven, but Mexicali scored three in the eighth on a three-run homer by Wes Bankston.

Mazatlan: Saul Soto was 2-for-5 with a home run. Issmael Salas was 2-for-4 with a walk and scored twice.

Mexicali: Chris Roberson was 2-for-4 with a walk and a run. Bankston was 1-for-3 and drove in four.