Obregon is one win away on a walk-off hit batsman.

OBREGON 6, MEXICALI 5 IN OBREGON

Game summary: Obregon led 5-0 after five, but Mexicali rallied to score five times in the sixth. It stayed tied at five until the bottom of the ninth, when a single and a passed ball put the winning run on third with one out. A pair of intentional walks loaded the bases, followed by a hit batsman to bring in the winning run.

Mexicali: Mike Benacka (Toronto) retired all seven batters he faced, five by strikeout. Ruben Rivera was 1-for-4 with a three-run homer.

Obregon: Doug Clark was 2-for-3 with a walk and scored twice. Carlos Valencia was 1-for-4 with a two-run homer.

Obregon leads the best-of-seven series three games to none.