Lee Dae-ho hit a grand slam and had three hits to contribute the heavy firepower in his team's 17-hit onslaught as the front-running Fukuoka Softbank Hawks trounced the Hokkaido Nippon Ham Fighters 13-2 on Wednesday night.

The Hawks, who saw their magic number to clinch the pennant drop to eight, took command early when they built a 5-0 lead in the second inning, featuring Kenta Imamiya's two-run single and a two-run triple by Keizo Kawashima at Sapporo Dome.

Each of the Hawks' starting nine had at least one hit against the second-place Fighters, who are 12-1/2 games back. It was oftbank's 80th victory of the season.