Xtreme, SUPRS Set Dates for Challenge
XSTSR and SUPRS Announce Dates of Co-Sanctioned Online Sim Supermodified Challenge March 28, 2015 – Goshen, IN…Xtreme Short Track Sim Racing, (XSTSR), and the Supermodified Ultimate Pavement Racing Series, (SUPRS), have released the dates of the races that they will co-sanction in the newly named Xtreme SUPRS Challenge Championship. This news comes on the heels of the recent announcement that XSTSR and SUPRS are joining forces for a partnership to include the co-sanctioning of non-wing… Keep Reading