www.good-guys.com. To register a car, call 925/838-9876. Fri.-Sat., Sept. 6-7, 8 a.m. to 5 p.m. Sun., Sept. 8, 8 a.m. to 3 p.m.
Air Force Academy Football on Sat., Sept. 7. For more, airforcesports.com or 472-1895.
Lumberjack Timbersports Challenge in Cripple Creek. Watch loggers compete in 11 logging events. 877/858-4653(GOLD). Sat., Sept. 7.
Events at the Penrose Equestrian Center, 1045 W. Rio Grande. Times and ticket prices vary, call 520-6711. On Sept. 7-8: Fall Llama Show.