In order to defend the lead from the chasing #3 NISMO Nissan Z of Takaboshi, Sekiguchi tried to take advantage of the slipstream offered by the #50 Arnage Toyota 86 MC of Takeshi Suehiro, who was driving at less than 100km/h along the pit straight due to a gear shift problem.
Sekiguchi moved out of the slipstream as he approached the Toyota GT300 car at nearly 300km/h and carried on in the lead, but the SARD driver's late move left an unsighted Takaboshi with little time to react to the slow Arnage car.