|Date of birth||13 August 1991|
|Place of birth||South Korea|
|Height||1.71 m (5 ft 7 in)|
|2007–2009||Kumho High School|
|2007–2008||→ Watford (loan)|
|2016||→ V-Varen Nagasaki (loan)||18||(0)|
|2009–2011||South Korea U-20||20||(1)|
|2011–2014||South Korea U-23||23||(4)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 3 July 2017.
‡ National team caps and goals correct as of 1 December 2013
|Revised Romanization||Baek Seongdong|
In 2007, Baek participated in youth program of the English professional football club Watford on the recommendation of the Korea Football Association. He was capped four times for the national team representing them in the 2011 FIFA U-20 World Cup. Following his good performances in the competitions, South Korean under-23 team coach Hong Myung-bo included him in the national squad.
Updated to 23 February 2016.
|Club||Season||League||Emperor's Cup||J. League Cup||Other1||Total|
1Includes Promotion Playoffs to J1.
- Baek Sung-dong – K League stats at kleague.com
- Baek Sung-dong – National Team stats at KFA (in Korean)
- Baek Sung-dong – FIFA competition record
- Baek Sung-dong on Cyworld (in Korean)
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