MOSCA – Mosca Motorsports Park opened the 2025 season with a test, tune and tech on Sunday.

The track, located at 4839 Lane 5 North, is a 1/3-mile dirt oval and it is the former Thunder Valley Speedway. It has been acquired by Clint Adams. BST Promotions will be the track’s promoter. The International Motor Contest Association (IMCA) will compete on this track along with many other tracks in Colorado.

The first competition of the season will take place on June 15 with the Father’s Day race. The racing classifications for this event include modifieds, stock cars, sport mods, hobby stocks, compacts, warriors, dwarfs/mod-lites, and junior compacts. Racing begins at 3 p.m.

Here is the 2025 schedule.

June 15 3 p.m. Modifieds, stock cars, sport mods, hobby stocks, compacts, warriors, dwarfs/mod-lites, junior compacts.

July 25 7 p.m. Late models, modifieds, stock cars, sport mods, hobby stocks, compacts, warriors, dwarfs/mod-lites, junior compacts.

Aug. 29-30 7 p.m. Modifieds, stock cars, sport mods, hobby stocks, compacts, warriors, dwarfs/mod-lites, junior compacts.

Sept. 28 3 p.m. Modifieds, stock cars, sport mods, hobby stocks, compacts, warriors, dwarfs/mod-lites, junior compacts.