Yunseong Chung: Ranking, Schedule & Stats
Yunseong Chung is a professional tennis player from South Korea, born 27 March 1998. Chung competes on the ATP Tour and plays right-handed. Chung stands 178 cm (5 ft 10 in) tall. Chung has been stronger on clay (62%, 16-10) than on hard (52%, 106-98). Chung was born in Seoul, South Korea and is based in Yongin, South Korea.
This page tracks Yunseong Chung's upcoming schedule, latest results, recent form and surface record, with each match linking through to a detailed head-to-head and pre-match analysis. Scores update live as matches are played.
Current form
2026 season2026Chung has won 16 of the last 30 first sets
Chung has won 2 of 6 deciding sets
Ratings & strengths
Umpiry ratings · updated dailyHow a player performs in the biggest moments, across 231 matches in our records. About
Surface performanceSurfaces
2026 seasonLast 12 monthsCareer · 2017 – todayClay is the clear edge: 10 losses in 26 matches across the career.
Ranking & projection
ATP ranking · not EloATP · not EloRecent results
Last 5Beyond today · rivals & careerBeyond today
Rivals
Most meetings
Most-played rivals. The record is Chung's wins–losses across all matches we have, qualifying excluded.
Season
Current seasonResults
Season breakdown
2026 · by level, surface, opponent, sets2026Career · 2017 – today
Career overview
2017 – todayMore career statistics
Career serve & return
Absolute totals across the 236 matches we have on record. Green is Chung, grey is the same stat by the players they faced.
Aces
| Chung | 1,774 |
|---|---|
| Opponents | 1,803 |
Double faults
| Chung | 1,093 |
|---|---|
| Opponents | 1,477 |
1st serve in
| Chung | 62% 20,395 / 32,832 |
|---|---|
| Opponents | 61% 20,691 / 33,675 |
1st-serve points won
| Chung | 69% 14,028 / 20,395 |
|---|---|
| Opponents | 67% 13,760 / 20,691 |
Break points converted
| Chung | 42% 1,466 / 3,458 |
|---|---|
| Opponents | 42% 1,221 / 2,920 |
Break points saved
| Chung | 58% 1,699 / 2,920 |
|---|---|
| Opponents | 58% 1,992 / 3,458 |
1st-serve points won by season
| Season | Chung | Opponents |
|---|---|---|
| 2026 | 70% | 67% |
| 2025 | 71% | 66% |
| 2024 | 67% | 66% |
| 2023 | 68% | 66% |
| 2022 | 70% | 68% |
| 2021 | 71% | 63% |
| 2020 | 68% | 73% |
| 2019 | 69% | 68% |
| 2018 | 69% | 67% |
| 2017 | 72% | 70% |
| 2016 | 64% | 65% |
| Career | 69% | 67% |
Counted from the match statistics we hold, season by season — the cards above are career totals from our data provider, so the two can differ by a few tenths. Seasons with fewer than three matches on record are left out.
Career win–loss by level
| Level | W–L | Win % | Titles |
|---|---|---|---|
| ATP 250 | 0–2 | 0% | 0 |
| Tour level | 0–2 | 0% | 0 |
| Challenger | 60–77 | 44% | 0 |
| ITF / Futures | 124–83 | 60% | 2 |
Challenger and ITF matches are shown in grey and are not part of the tour-level total.
Season breakdown
Wins and losses in one season, split by round reached, surface, tournament level and opponent ranking band.
2026 season · 21–11 · W–L 66% · 32 matches
Round played
| Qualifying | 5–2 (71%) |
|---|---|
| R32 | 5–3 (63%) |
| R16 | 4–1 (80%) |
| SF | 1–2 (33%) |
| F | 0–1 (0%) |
Surface
| Hard | 18–10 (64%) |
|---|---|
| Hard (indoor) | 3–1 (75%) |
Tournament level
| Challenger | 0–2 (0%) |
|---|---|
| ITF / Futures | 21–9 (70%) |
Rounds are the round each match was played in, not a ladder: a player enters a 32-draw straight in R32, and team events (United Cup, Davis Cup) are not played through a draw at all — those have their own row. Ranking bands use the opponent's ranking on match day and are cumulative: top 100 includes top 10.
Surface record by season
Each cell is one season on one surface: the number is wins–losses, the colour is the win rate. Carpet is counted as indoor hard.
| Season | Hard | Clay | Grass | I.hard | Total |
|---|---|---|---|---|---|
| 2026 | 18–10 | · | · | 3–1 | 21–11 |
| 2025 | 18–10 | · | · | · | 18–10 |
| 2024 | 14–17 | · | · | · | 14–17 |
| 2023 | 20–16 | 5–4 | 2–1 | 3–1 | 30–22 |
| 2022 | 23–17 | 7–4 | · | 4–4 | 34–25 |
| 2021 | 21–10 | 5–4 | · | 2–1 | 28–15 |
| 2020 | 1–2 | 0–2 | · | 2–2 | 3–6 |
| 2019 | 22–20 | 2–2 | 1–2 | 1–3 | 26–27 |
| 2018 | 40–18 | 13–6 | · | 5–3 | 58–27 |
| 2017 | 19–19 | 1–1 | · | 0–4 | 20–24 |
| 2016 | 32–24 | · | · | 3–2 | 35–26 |
| 2015 | 9–8 | 4–3 | · | · | 13–11 |
| 2014 | 7–4 | · | · | · | 7–4 |
| 2013 | 4–4 | · | · | · | 4–4 |
| Career | 248–179 58% | 37–26 59% | 3–3 50% | 23–21 52% | 311–229 58% |
Record at one tournament
Every edition entered: year, best round reached, wins and losses. Most recent first.
Busan CH · Editions 7 · Record 9–7 · Titles 0
Tournament page →| Year | Best round | W | L |
|---|---|---|---|
| 2026 | R32 | 0 | 1 |
| 2023 | R16 | 1 | 1 |
| 2022 | R16 | 1 | 1 |
| 2019 | QF | 3 | 1 |
| 2018 | R32 | 3 | 1 |
| 2017 | Qualifying | 0 | 1 |
| 2016 | Qualifying | 1 | 1 |
Season statistics
Each stat is stored as a value–count pair, so seasons can be added together and the rate is always value ÷ count.
2020–2023 · 3 games summed across the range
| Stat | Value | Count | Rate |
|---|---|---|---|
| Aces | 11 | 31.5 service games | 0.3 / game |
| Double faults | 5 | 31.5 service games | 0.2 / game |
| 1st serve in | 129 | 196 serve points | 66% |
| 1st-serve points won | 81 | 129 1st serves in | 63% |
| 2nd-serve points won | 28 | 67 2nd serves | 42% |
| Service points won | 109 | 196 serve points | 56% |
| Return points lost | 47 | 182 return points | 26% |
| Break points saved | 8 | 19 faced | 42% |
Value is what happened (aces hit, points won), count is how often it could (service games, points played). Adding seasons adds both — the rate is never averaged from percentages.
More on Umpiry · discovery
More players from South Korea
All →Frequently asked · Yunseong ChungFrequently asked
How tall is Yunseong Chung?
Yunseong Chung is 178 cm (5 ft 10 in) tall.
When was Yunseong Chung born?
Yunseong Chung was born on 27 March 1998 (28 years old).
Where is Yunseong Chung from?
Yunseong Chung is from South Korea, born in Seoul, South Korea on 27 March 1998.
Is Yunseong Chung right or left-handed?
Yunseong Chung plays right-handed.
Who is Yunseong Chung's coach?
Yunseong Chung is coached by Jean-Luc Fontanot.
How good is Yunseong Chung on hard?
Yunseong Chung has won 52% of hard-court matches (106-98).
Cite this
Yunseong Chung is ranked No. 756 in the ATP singles rankings with 40 points. Umpiry, "Yunseong Chung: Ranking, Schedule & Stats", https://umpiry.com/players/yunseong-chung-kor?utm_source=cite (as of 23 September 2026).