Only one more week before the chase for the championship begins.

The final week of the boys lacrosse regular season has arrived, with games wrapping up Saturday. Playoff brackets should post Sunday, with Class 4A first-round postseason play starting May 6. The first round in 5A is May 7.

Only two unbeaten teams remain in the state: In 5A, Cherry Creek wrapped up the League 4 crown with a 10-6 triumph over No. 2 Colorado Academy on Tuesday night. The Bruins have a non-league tilt with ninth-ranked Regis Jesuit on Friday.

In 4A, No. 3 Aspen (13-0) swept past then-No. 8 Grand Junction in a pair of games, with the Skiers closing out Thursday at currently eighth-ranked Steamboat Springs.

With the postseason looming, here is a quick look back at the previous week and what lies ahead:

Class 5A

While a handful of top-10 contests took place Tuesday night, another one is on tap for Wednesday. Fifth-ranked Ralston Valley (12-1, 7-0 in League 2) visits No. 8 Fairview (10-3, 5-2) in the league finale for both teams. Both teams also have a non-league contest to close out the regular season, with the Knights taking on Colorado Academy. … Before facing the Bruins, Colorado Academy was coming off a 12-11 victory over No. 6 Denver East last Friday. … No. 4 Arapahoe and No. 7 Mountain Vista face off Friday night in non-league play. The Warriors (11-2, 4-2 in League 4) dispatched East 9-5 on Tuesday night to close out league play. … Mountain Vista dropped its League 3 final Tuesday night to No. 3 Valor Christian (13-2, 7-0). The Eagles closed out their regular season with the 13-11 victory over the Golden Eagles.

Class 4A

For a team that lost its first seven games of the season, Cheyenne Mountain has come on strong to close out the regular season. The Red-Tailed Hawks (5-8, 5-0 in Southern League) handed Air Academy its first loss of the season last Friday with a 12-11 triumph, getting four goals from sophomore Henry McMartin and three apiece from Ethan Longwill and Trent Harder. Lucas Obringer had three goals and four assists in the loss for the Kadets (11-1, 3-1). Cheyenne Mountain fell 12-11 to No. 2 Evergreen on Monday despite four goals from Axel Schroder. … The Cougars (11-2, 3-1 Foothills) also notched an 18-4 victory over No. 6 Golden last week as Eli Park and Brody Reece each scored four goals. … Dakota Ridge (12-2, 4-0) secured the Foothills League title with a 15-5 victory over Green Mountain. … No. 5 Resurrection Christian (10-3, 4-0 Northern) closes out league play Friday at Thompson Valley.