Racing Equipment - Read More Zimmerman on top in Out-Pace usra B-Mods at Humboldt humboldt, Kan. (March 16)-Veteran racer Randy Zimmerman of Fort Scott, Kan., flew by leader J.C. Morton on lap 16 of the Out-Pace usra B-Mod feature, and then held off multiple challenges over the final nine laps to score a 1,500 victory.