Sohn Kee-chung, Suh Yun-bok, Kim Koo and Nam Sung-yong at Gyeonggyojang in 1947
|Died||June 27, 2017(aged 94)|
|Occupation||Long distance runner|
|Known for||Winner of 1947 Boston Marathon|
|Revised Romanization||Seo Yunbok|
He won the race with a world best time of 2:25:39 under the coach Sohn Kee-chung, the Korean winner of the marathon at the 1936 Berlin Olympics. His participation in the Boston Marathon was financed by donations from servicemen in the United States Forces Korea. His win was the first time a world best for the men's marathon was set at the Boston Marathon. The previous world best was set by his coach Sohn in Tokyo, Japan in 1935.
- May 1946: Champion at the 1st All-Korea Marathon (전조선 마라톤 선수권대회)
- September 1946: Champion at the 1st Korea National Track and Field Meet (전국육상선수권대회)
- October 1946: Champion at the Korean National Sports Festival (전국체육대회)
- April 1947: Set a world record of 2:25:39 at the 51st Boston Marathon
- June 1948: represented South Korea in the 1948 Summer Olympics in London
- "Ex-Boston Marathon champion Suh Yun-bok passes away". Retrieved 27 June 2017.
- "서윤복 (Seo Yun-Bok)" (in Korean). Sports Museum of Korea. Retrieved 6 October 2007.
- "Korean Star, G.I. Financed Wins 51st B.A.A. Marathon". Christian Science Monitor. 21 April 1947. Retrieved 6 October 2007.
- Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill. "Suh Yun-bok Olympic Results". Olympics at Sports-Reference.com. Sports Reference LLC. Retrieved 27 June 2017.
| Men's Marathon World Record Holder
19 April 1947 – 14 June 1952