| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jeong•Jae-Seong |
| Used name | Jeong•Jae-Seong |
| Name order | Oriental |
| Original name | 정•재성 |
| Other names | Jung Jae-Sung |
| Born | 25 August 1982 in Jeonju, Jeollabuk (KOR) |
| Died | 9 March 2018 |
| Measurements | 168 cm / 69 kg |
| NOC | Republic of Korea |
| Medals | OG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 1 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2008 Summer Olympics | Badminton | KOR |
Jeong Jae-Seong | |||
| Doubles, Men (Olympic) | Lee Yong-Dae | =9 | ||||
| 2012 Summer Olympics | Badminton | KOR |
Jeong Jae-Seong | |||
| Doubles, Men (Olympic) | Lee Yong-Dae | 3 | Bronze |