GILLETTE, Wyo. – Gillette Thunder Speedway hosts three $1,000 to win features for Xtreme Motor Sports IMCA Modifieds over the course of its 17th annual East-West Clash special Friday, Saturday and Sunday, Sept. 2-4.All three features are 2017 Fast Shafts All-Star Invitational ballot qualifiers. Saturday and Sunday features both pay a minimum of $100 to start.IMCA Speedway Motors Weekly Racing National, Larry Shaw Racing Western Region and Allstar Performance State points will be awarded each night.Entry fee is $75 each night. Pit passes are $30 or $75 for all three days. Grandstand admission is $15 for adults, $10 for seniors and military, and free for kids 12 and under.More information about the East-West Clash is available by calling 307 682-8866 and on Facebook.