Bishop Gorman, Green Valley, Liberty and Silverado hosting first-round games. Arbor View and Palo Verde meet with a Mountain Region home playoff game on the line.
They took different roads to reach a top-two league finish, but Silverado and Green Valley joined Liberty and Bishop Gorman as playoff first-round hosts.
Centennial needs a win over a Cimarron-Memorial team that is out of the playoff race to claim its first league title since 2002 and the No. 1 seed in the Northwest League.
Martin Blake ran for 113 yards and a touchdown and returned a punt for a score to help the Pioneers to a 48-7 Southeast League win over Eldorado.
The Northeast League title is on the line when Desert Pines travels to meet Las Vegas, and the regular season will wrap up in the Southweast and Southeast leagues.
Desert Oasis needs a win and help to reach the postseason from the Southwest League. Foothill and Chaparral will decide the Southeast’s situation on the field.
The Chargers have earned all of their three league wins in dramatic fashion by a total of 15 points, but their 49-48 win over Desert Oasis clinched a playoff berth.
Garrett Castro threw a 6-yard touchdown pass, and Hector Barrios-Baez knocked home the game-winning extra point for Green Valley in a 24-23 win over Foothill.
Palo Verde looks to maintain its unbeaten record in Mountain League play against Centennial in the headliner of this week’s games in the valley.
The NIAA announced punishments Tuesday for the Desert Oasis-Durango game that ended after an altercation Friday night.