Shinpei employs different strategies in each loop of the race in the anime "Redline". In the first loop, he focuses on staying ahead of his opponents by utilizing his raw speed and skillful driving to maintain the lead. In the second loop, he employs a defensive strategy, blocking and countering his opponents' aggressive maneuvers to protect his position. Finally, in the third loop, Shinpei uses a combination of calculated risks and strategic overtaking to secure his victory in the Redline race.