The second event on the USA Cycling Gravity Mountain Bike National Calendar (MBNC) happened at the Chalk Creek Stampede in Nathrop, Colorado this past weekend. Aaron Gwin and Joanna Petterson won the dual slalom while Petr Hanak and Petterson won the 4X race. In the non-gravity events, Jay Henry and Jennifer Smith won both the short track and the cross country races. See full results for all four disciplines at the Chalk Creek Stampede or check out full standings (briefs posted below) for the USAC National Gravity calendar.
