Practice: Some teams have begun workouts. Others will start next week. Teams are allowed a maximum of 28 practices before their first game.

Kickoff Classic: Five scrimmages played under gamelike conditions with money raised benefiting the San Diego Section's transportation fund, which helps schools with travel costs during local and state playoffs. Aug. 29 at La Costa Canyon – El Camino vs. Central, 5:30 p.m.; Chula Vista vs. La Costa Canyon, 8 p.m. Aug. 30 at Francis Parker – Fort McMurray (Canada) vs. Julian, 2:30 p.m.; La Jolla Country Day vs. Madison, 5 p.m.; West Hills vs. Francis Parker, 7:30 p.m.

Season openers: Games begin Sept. 5. Top matchups the first week include Oceanside vs. Eastlake, Rancho Buena Vista vs. Helix, Mira Mesa vs. Vista and Poway vs. Scripps Ranch.

Postseason: Playoffs begin Nov. 21. Championships for Division I through Division IV will be Dec. 12 at Qualcomm Stadium. Championship for Division V will be Dec. 13 at a site to be determined. State Football Championship Bowl games will be Dec. 19-20 at The Home Depot Center in Carson.

Online: In early September, check the Union-Tribune Web site for team previews, schedules and rosters at utprepsports.com