After the opening two rounds of the championship Yamashita and Kazuya Oshima hold a five-point lead at the head of the standings over Kunimitsu Honda pair Naoki Yamamoto and Tadasuke Makino, winning in the Okayama opener and finishing seventh last time out at Fuji Speedway.
That leaves the #14 Eneos-sponsored GR Supra as the heaviest car in the GT500 field heading into next week's third round of the championship at Suzuka, with 46kg of success ballast.
