Table:
text: 2010 U.S. F2000 National Championship
Race calendar and results
Race calendar and results
Rnd Circuit Location_ Date_ Pole_position Fastest_lap Most_laps_led Winning_driver Winning_team Supporting
8 Autobahn Country Club Joliet, Illinois August 1 Sage Karam Patrick McKenna Sage Karam Sage Karam Andretti Autosport Star Mazda
9 Road America Elkhart Lake, Wisconsin August 21 Sage Karam Sage Karam Sage Karam Sage Karam Andretti Autosport ALMS
10 Road America Elkhart Lake, Wisconsin August 22 Sage Karam Sage Karam Sage Karam Sage Karam Andretti Autosport ALMS
11 Road Atlanta Braselton, Georgia September 30 Sage Karam Sage Karam Sage Karam Sage Karam Andretti Autosport ALMS

Question: How many races were 10 laps in the 2010 US F2000 National Championship?