Ji Sung Nam

South Korea33 years oldRight-handed1.83 m

ATP rank

Unranked

Career high: #236Aug 2019
Titles: 4
2026: 6–8

#730This week

Best #268 in Jan 2021Title

No match scheduled.

Splits

Matches

6–843%

14 matches in 2026

LatestLost to Luca Castelnuovo, Shanghai Challenger QF11 Sep

Sets: 13–1645%
Tiebreaks: 2–167%
Deciding sets: 0–10%
From a set down: 0–70%
Finals: 0–0

Shanghai Challenger 2026ChallengerCourt speedLost QF

R1610 Sep

R328 Sep

27⁷6

Underdog won · #730 beat #157

Zhangjiagang Challenger 2026ChallengerCourt speedLost Q1

Prostejov Challenger 2026ChallengerCourt speedLost Q1

Vicenza Challenger 2026ChallengerCourt speedLost Q1

Busan Challenger 2026ChallengerCourt speedLost Q1

Serve & return

Last 12 months against the tour average

Pro Holds, breaks, aces, first and second serve, break points saved and return points won, each against the tour average.

Season by season

368 matches on record

SeasonAllHardClayGrassTitlesBest rank

20266–86–60–2–#730

202523–1723–160–1–1#675

202414–1612–112–40–1#563

202315–2013–162–4–#474

202226–1824–132–5–1#420

20213–71–42–3–#268

Best wins, last 12 months

Shanghai ChallengerRound of 328 Sep

Ji Sung Nam

27⁷6

Rei Sakamoto

06³4

Underdog won · #730 beat #157 Kobe ChallengerQualifying R210 Nov

Underdog won · #719 beat #322 Seoul ChallengerQualifying R126 Oct

Shanghai ChallengerRound of 1610 Sep

Most played

Head-to-head against the opponents Sung Nam has met most

Titles

4 titles from 11 finals.