In 1992, the year he turned 22, he struck out 14 batters in a row for Korea University against Sungkyunkwan University. That November he was taken by the LG Twins with the first pick in the draft. In 1993, the year he turned 23, he joined LG and went 9-9 in his first season.
The breakthrough yearIn 1994, the year he turned 24, he went 18-8 and took the wins title, and on Oct. 23 he was the winning pitcher in Game 4 of the Korean Series as LG won the title.
In 1995 he won 20 games as a starter alone. In 1996 he became a closer, and in 1997 he led in saves with 37.
In 1998, the year he turned 28, he applied through the posting system to go to the United States but gave up when the fee came to $600,000, and joined Japan’s Chunichi Dragons. In 1999 he contributed to Chunichi’s Central League title and, in December, agreed to a two-year deal with the Boston Red Sox. In 2000 he appeared in nine major league games.
In 2002, the year he turned 32, he returned to Korea after five years and went through the steps to rejoin LG. In 2003 he led in saves with 30. In 2004 he was traded to SK in January and announced his retirement in June.
In 2005, the year he turned 35, he held a showcase for a debut mini album as vocalist of the rock band What. In 2012 he returned to the field after eight years as pitching coach of the Goyang Wonders. In 2014 the Doosan Bears announced him as a coach. In 2015 he returned as the first director of LG’s Pitching Academy, and in 2018 he offered to resign.
In 2019, the year he turned 49, he joined MBC Sports+ as a commentator. In 2022 he was named to the KBO 40th anniversary Legends 40. In 2023 he spoke about LG’s Korean Series title after 29 years. In 2024 he opened a YouTube channel with band performance and guitar practice videos.
In 2025, the year he turned 55, he remained a commentator for MBC Sports+. In 2026, the year he turned 56, he was not among the commentators MBC Sports+ announced for the 2026 season.
Lee Sang-hoon (born Mar 11, 1970) joined the LG Twins in 1993, the year he turned 23, and became known on Oct 23, 1994, the year he turned 24, as the winning pitcher in Game 4 as LG won the Korean Series. In 2000, the year he turned 30, he pitched in nine games for the Boston Red Sox in the major leagues.
Ages are by calendar year (the year minus the birth year), birthdays aside.