O Jeonga

O Jeonga (Hangul: 오정아, Hanja: 吳政娥, b 24 March 1993 on Jeju Island, Korea) is a Korean female 5 dan professional.

Table of contents Name variants Early life Promotion history Go career highlights Head-to-head scores against current female rivals Personal life Links Pictures

Name variants

Oh Jeonga on Go4Go and Waltheri, O Junga on Go To Everyone!

Early life

O Jeonga is the third (middle) child of one son and four daughters of Oh Sang-do and Kang Gyeong-ja. She learned Baduk at the Jang Su-yeong Baduk Dojang, under teacher Jang Su-yeong 9p.

Promotion history

• 5p / 2020.12.08 / 5 dan promotion
• 4p / 2018.11.22 / 4 dan promotion
• 3p / 2016.06.18 / 2016 China Women’s Euljo League
• 2p / 2013.03.22 / 57th National Championship Preliminary
• 1p / 2011.03.20 / 39th Women’s Entrance Competition (Internal Record)

Go career highlights

• 2011: bronze medallist in Asian Games (Indoor and Martial Arts) as mixed pair with Kang Seungmin
  
• 2017: most wins (4) in 7th Huang Longshi Shuang Deng Cup
  
• Winner of the Dasan Cup
• Runner-up of the Iksan Seodong Cup.
• 2019: Won the Korea-China-Japan Family Invitational Competition (pair go) competition with her husband Lee Young-goo
• 2021: 1st IBK Cup runner up (l. Choi Jung). O Jeonga was heavily pregnant, and gave birth to her daughter only 8 days after the tournament finished.
• 2023: coach of the Korean women’s national team
• 2025: 5th IBK Cup: reached quarterfinal with upset wins over O Yujin 9p and prodigy Nakamura Sumire 4p

• Her 2020 game against Park Taehee was reviewed by Yoonyoung Kim.

Head-to-head scores against current female rivals

(Based on O Jeonga, Go Ratings and game list), as of 27 Jun 2025.)

• Choi Jung, 9p, current Korean and World #1 female, whom she regards as her role model: 5–11
• Kim Eunji, 9p, #2 female and #1 female teenager in world, #2 female in Korea: 0–5
• Ueno Asami, 6p, #3 female in world, #1 female in Japan: 1–0
• Yu Zhiying, 8p, #5 female in world, #1 female in China: 0–2
• Fujisawa Rina, 7p, #6 female in world, #2 female in Japan: 4–1
• O Yujin, 9p, #7 female in world, #3 female in Korea: 5–11
• Kim Chaeyeong, 9p, #8 female in world, #4 female in South Korea: 2–6
• Li He, 6p, #12 female in world, #6 female in China: 1–3
• Nakamura Sumire, 4p, #14 ranked female and #3 female teenager in the world, #3 ranked female in Japan, #5 ranked female in Korea: 1–1
• Cho Seunga, 7p, #15 ranked player and #323 overall, and #6 ranked female player in Korea: 1–4
• Cho Hyeyeon, 9p, #19 female in world, once #1 and many years #2 female in world: 1–3
• Kim Hye-min, 9p, #19 female in the world, #7 female player in Korea: 6–5
• Pak Chi-eun, 9p, #68 in world (formerly #3 for 4 years), #23 in Korea (formerly #1): 2–2
• Kim Eunseon, 6p, Winner Baduk Masters Queen: 8–0
• Kim Dayoung, 5p, Kim Chaeyeong’s younger sister, #27 ranked female in the world and #9 female in Korea: 5–5
• Lee Minjin, 8p, #29 female in the world, #10 female player in Korea: 5–3
• Heo Seo-hyeon, 5p, Hyorim Cup winner: 5–2
• Jeong Yujin, 4p, Winner 2nd IBK Cup: 0–1
• Kim Jooah, 4p, Runner up, 2nd Hyorim Cup Future Empress Championship: 0–3
• Kim Minseo, 4p: 1–1
• Lee Suljoo, 3p: 1–0

Personal life

She married Lee Young-gu 9p on 3 Nov 2018 after dating for six years. They have one daughter born on 26 August 2021, just eight days after she finished runner-up in the 1st IBK Cup.

Links

• KBA
• Ko. Wiki
• Ch. Wiki
• Namu
• Waltheri
• Go4Go
• Go Ratings

Pictures

O Jeonga and her husband Yi Yeong-ku, after they won the Myeongin Family Invitational
(Image credit: baduk.or.kr)

O Jeonga and her fiancé Yi Yeong-ku, just before they married, 2018
(Image credit: cyberoro.com)