Kim Seong-yoon

Kim Seong-yoon (also transliterated as Kim Sung-yoon, born February 2, 1999) is a South Korean professional baseball outfielder for the Samsung Lions of the KBO League. At 5ft 4in, he over-took Kim Sun-bin of Kia Tigers, who stands at 5ft 5in, to be the shortest player in the KBO when he debuted for the Lions in 2017. He is 4 in (20 cm) shorter than the average players in KBO and tied with Daichi Mizuguchi of Seibu Lions to be the shortest among Major League Baseball (MLB), Nippon Professional Baseball (NPB) and KBO players. In 2020, Kim was joined by fellow Samsung Lions second baseman Kim Ji-chan, who also stands at 5ft 4in.

Samsung Lions
Kim joined the Samsung Lions as a fourth round, 39th overall draft pick in 2017, right after graduating from Posco High School. In his sixth KBO game, against the SK Wyverns, Kim hit a two-run home run despite never hitting any home run in his high school career.

In 2023, he had a career-high batting average of .314 and 18 steals.

International
Kim appeared in six baseball contests during the 2022 Asian Games, batting .222/.278/.333 in 18 at-bats, and winning a gold medal for South Korea.