K1 Speed in North San Diego kicks off the second half of the 2011 Challenge GP Race Series this coming Sunday July 24th, with an all new track layout ...

K1 Speed in Ontario, California opened up their Challenge GP race series this past weekend to a number of returning drivers that are all heavy hitters ...

K1 Speed in Phoenix Arizona is kicking off the second half of the 2001 Challenge GP Race Series this coming Sunday hosting the best in indoor kart racing ...

K1 Speed in Ontario California will kick off the second half of the Challenge GP race series for the San Bernardino K1 location this coming Sunday July ...

Ready Los Angeles? K1 Speed Torrance, with its unique concrete surfaced facility, has changed their track layout to give everyone an all-new challenging ...

K1 Speed in Irvine, California kicked off the start of the 2nd half of the 2011 Challenge GP race season for the So-Cal region this past Sunday to a large ...

In the largest Challenge GP to date, K1 Speed in South Florida hosted 86 drivers Sunday night to kick off their Challenge GP race season for the 2nd half ...

K1 Speed in Hollywood, South Florida will be introducing the Junior indoor kart racing league August 2nd, to the South Florida kart racing community. ...