Chihiro Sumida outpitched Carter Stewart Jr. with seven innings of one-run ball as the Seibu Lions beat the SoftBank Hawks 2-1 Monday to stop their season-worst losing streak at eight games.
Sumida (4-7) held the Hawks to three hits, including a sixth-inning home run by Masaki Mimori, while striking out four and walking none at Kyocera Dome Osaka.
The Hawks had a chance to tie the game in the ninth, putting runners on the corners with one out, but Lions closer Tatsushi Masuda got the last two batters to line out for his 13th save.
The 23-year-old Stewart (0-1), in his fifth year in Japan, was charged with two runs and seven hits in 4-1/3 innings.
The talented right-hander was selected straight out of high school by the Atlanta Braves as the No. 8 overall pick in the 2018 MLB draft but did not sign.
Seibu's Yuto Koga singled in the game's first run in the second inning. David MacKinnon made it 2-0 in the fifth with an RBI single in the day's only game in Nippon Professional Baseball.