Grand Forks ND July 2 2013: Austin Pierce increased his points lead in the NOSA points race by capturing the win at Greenbush Racepark over the weekend. The feature win, Pierce's first, moved him 17 points in front of the new 2nd place holder, Chris Ranten.

Other upward movement in the Top 10 includes Jordan Adams, Chris Shirek and Shane Roemling.

NOSA returns to River Cities Speedway in Grand Forks, ND this Friday and will round out the weekend with a race in Glyndon, MN at the Buffalo River Race Park on Sunday.