Defending champion Mazatlan was an LMP-best 24-10 at home, but lost their final four games to end a disappointing second half with a 15-18 record going into their first round set with rival Culiacan. The Venados won their season series against Culiacan, eight games to three.
Obregon gets home field advantage against Mexicali, and the red-hot Yaquis may be the team nobody wants to play in the postseason. The Aguilas beat Obregon six out of ten games this winter, but all six of those wins came in the first half.
All three best-of-7 series were scheduled to begin Saturday, January 2.