Japanese Paralympic debutant snowboarder Masataka Oiwane was all smiles after a bitter-sweet eighth-place finish in the men's snowboard cross on Monday in China.Considered an authority on snowboard equipment and maintenance among his teammates, Oiwane brought his own special board wax to the competition venue near Beijing, and some of his teammates used it in pursuit of the Paralympic podium.Six Japanese men competed in snowboard cross events in Zhangjiakou, northern China, a significant increase from the 2018 Pyeongchang Paralympics where only three raced.None were able to win a medal, but…READ FULL ARTICLE