San Bernardino, California - February 16, 2011 - The Yamaha QuadX Championship series has been updated to include an additional event on Saturday, July 9th and a date shift of the October race from Sunday to Saturday.

The sixth round of the series makes for a double header at the challenging Glen Helen track on July 9th and 10th. The venue's spacious camping grounds will make this for a fun race weekend for the whole family.

The series kicks off March 27th at Glen Helen Raceway as a grand finale of Dirt Fest 2011 – a fun weekend for ATVs, UTVs and Trophy Karts. Come on Friday and camp for the weekend to enjoy open trail riding, poker runs, mud bogs and demo rides on Saturday and the QuadX on Sunday.

More information please visit www.quadxseries.com and www.glenhelen.com.

2011 YAMAHA QUADX SERIES

Round #1	Sunday March 27	Glen Helen Raceway
Round #2	Sunday April 17	ACP, AZ
Round #3	Sunday May 8	Cahuilla Creek, CA
*Round #4	Sat June 18	Speedworld, AZ
**Round #5	Sat July 9	Glen Helen, CA
**Round #6	Sun July 10	Glen Helen, CA
*Round #7	Sat Sept. 10	Speedworld, AZ
Round #8	Sat Oct. 29	Glen Helen, CA (double pts, amateurs only)

*Sat night event
**Doubleheader