Shoma Okumura hit a grand slam in the first inning as Osaka Toin battered Tokoha Gakuen Kikugawa of Shizuoka Prefecture for a 17-0 victory to claim the National High School Championship on Monday.
Yuto Fukushima struck out nine over the distance, limiting Tokoha to five hits at a packed Koshien Stadium to give the Osaka school its second triumph in the summer classic after winning in 1991 as a newcomer.
The Toin offense, which had double-digit hits in all five games the team played before reaching the final, erupted again with 21 hits — a record in a final game — including a bases-clearing double by Fukushima and a two-run homer by cleanup hitter Keigo Hagihara.