Lee Su-min, a senior left-hander with Daegu Sangwon High School, recorded 26 strikeouts in 10 innings in his team's 2-1 win over Daegu High School on Sunday in their North Gyeongsang regional showdown in the national weekend high school league. Lee allowed three hits and walked three in his complete game victory. The 17-year-old threw 162 pitches against 38 batters.
Jung Young-il, a former minor league prospect for the Los Angeles Angels, held the previous record of 23 strikeouts, set in 2006. Jung, a right-hander, had pitched 13 2/3 innings at the time.
Sun Dong-yol, currently the manager of the Kia Tigers in the Korea Baseball Organization (KBO), holds the record for most strikeouts in a professional game with 18. He pitched 13 innings in a game in 1991 to reach the mark.
Ryu Hyun-jin, now with the Los Angeles Dodgers, owns the strikeout record for a nine-inning professional game with 17, set in 2010 while with the Hanwha Eagles in the KBO.
On Sunday, the two schools were tied at 1-1 after nine innings, with Lee having recorded 24 Ks. Then he returned to the mound in the top of the 10th and punched out two more batters.
Daegu Sangwon drew a bases-loaded walk with two outs to win the game. The losing pitcher of the game, Seo Dong-min, also went the distance, going 9 2/3 innings and striking out nine.
Lee Su-min, seen here pitching for South Korea at the 18U Baseball World Championship in September 2012, recently struck out 26 batters in a local high school game. (Yonhap file photo)