Just one lap later , Proud would see his impressive second - place run literally go up in smoke .
Battling Losurdo for second in the season - long points chase , Heroth dove under Losurdo in turn No. 1 on the 43rd lap .
Just one lap later , Proud would see Heroth 's impressive second - place run literally go up in smoke .
Battling Losurdo for second in the season - long points chase , Heroth dove under Losurdo in turn No. 1 on the 43rd lap .