ATP
Kokoro Isomura
Ranking—
Player details
- Age
- 23 years
- Plays
- Right-handed
Recent form
Last 20 recorded matches · up to 20 · newest first
10 Wins 10 Losses
SWOT analysis
Open a finding to see its evidence and sample.
Strengths
Tiebreaks
Wins 69% of the tiebreaks he plays.
24-11 over 24 months
Threats
Untested surface
Barely any matches on grass: any forecast there leans on his overall level, not on direct evidence.
fewer than 5 matches
Basis and methodology
Computed from opponent-adjusted serve and return over 96 matches, 35 tiebreaks, 32 deciding sets, Elo by surface.
Surface overview
All recorded results, not necessarily a complete career. This selector changes only the surface overview.
Hard
54.3%82 Wins · 69 Losses · 151 recorded matches
Clay
63.6%7 Wins · 4 Losses · 11 recorded matches
Track = recorded win percentage, on a 0–100% scale.
Elo ratings
Current ratings from recorded history. Overall and surface ratings use different scales; do not rank them against each other.
- Overall
- 1,454
- 160 recorded matches
- Hard
- 1,447
- 149 recorded matches
- Clay
- 1,468
- 11 recorded matches
- Grass
- —
- 0 recorded matches
Serve & return
Last 12 months · 41 recorded matches
Raw player aggregates, not circuit averages or performance ratings. Samples vary by metric; the match count is not the denominator for every percentage. Tracks run from 0 to 100%.
- Aces per sampled match
- 2
- Double faults per sampled match
- 3.9
- All points won
- 49%
Serve
41 recorded matches
- First serves in
- 63%
- First-serve points won
- 67%
- Second-serve points won
- 47%
- Break points saved
- 89%
- Service points won
- 60%
Return
41 recorded matches
- First-serve return points won
- 29%
- Second-serve return points won
- 53%
- Break points converted
- 15%
- Return points won
- 39%
Return values are derived from opponents’ serve data.
Pending validation: hold/break rates, shot averages and ratios, and clutch/deciding-set metrics are omitted.
Match length
How this player’s matches have finished, best of three, last five years.
22Average gamesReference mean: 21.4
20MedianReference median: 20
157Matches counted
Explore all games lines
Reference: 159,624 completed best-of-three matches in our database, ATP + WTA combined, all levels and surfaces, last five years. Retirements and walkovers excluded; not a circuit average.
| Line | Over | Reference | Difference |
|---|---|---|---|
| 16.5 | 82.2% | 77.4% | +4.8 |
| 18.5 | 66.9% | 59.6% |
Match activity
Latest 50 loaded matches · up to 50 · newest first
Loaded dates: 1 Sep 2025 – 31 Aug 2026. Filters apply only to these matches.
50 of 50 loaded matches · 24 wins · 26 losses
- Loss31 Aug 2026
Challenger Zhangjiagang (Hard)
Hard · Qualifying Final
Winner listed first
Enzo AguiardKokoro IsomuraRecorded score (winner first): 6-7 7-5 7-6
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 7
- First-serve points won
- 69%
- Break points saved
- 6
- Win30 Aug 2026
Challenger Zhangjiagang (Hard)
Hard · Qualifying Semifinals
Winner listed first
Kokoro IsomuraUisung ParkRecorded score (winner first): 7-5 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 7
- First-serve points won
- 76%
- Break points saved
- 6
- Loss11 Aug 2026
Challenger Astana (Hard)
Hard · Round of 32
Winner listed first
Kasidit SamrejKokoro IsomuraRecorded score (winner first): 5-7 6-0 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- First-serve points won
- 64%
- Break points saved
- 9
- Win10 Aug 2026
Challenger Astana (Hard)
Hard · Qualifying Final
Winner listed first
Kokoro IsomuraSasi Kumar MukundRecorded score (winner first): 1-6 7-6 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- First-serve points won
- 76%
- Break points saved
- 6
- Win9 Aug 2026
Challenger Astana (Hard)
Hard · Qualifying Semifinals
Winner listed first
Kokoro IsomuraUisung ParkRecorded score (winner first): 6-2 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 6
- First-serve points won
- 74%
- Break points saved
- 1
- Loss28 Jul 2026
Challenger Vancouver (Hard)
Hard · Qualifying Semifinals
Winner listed first
Karl PolingKokoro IsomuraRecorded score (winner first): 6-3 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- First-serve points won
- 62%
- Break points saved
- 11
- Win20 Jul 2026
Challenger Winnipeg (Hard)
Hard · Qualifying Semifinals
Winner listed first
Kokoro IsomuraBen JonesRecorded score (winner first): 4-6 6-4 7-6
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- First-serve points won
- 76%
- Break points saved
- 4
- Loss20 Jul 2026
Challenger Winnipeg (Hard)
Hard · Qualifying Final
Winner listed first
James Kent TrotterKokoro IsomuraRecorded score (winner first): 6-1 6-0
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- First-serve points won
- 38%
- Break points saved
- 2
- Win26 May 2026
ITF M15 Gimcheon 2
Hard · Round of 32
Winner listed first
Kokoro IsomuraLee D. H.Recorded score (winner first): 7-5 6-4
View match - Loss19 May 2026
Challenger Bengaluru 3
Hard · Round of 32
Winner listed first
D PalanKokoro IsomuraRecorded score (winner first): 6-4 3-6 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 4
- Winners
- 22
- Unforced errors
- 24
- First-serve points won
- 80%
- Break points saved
- 7
- Loss13 May 2026
Challenger Bengaluru 2
Hard · Round of 16
Winner listed first
Ilya IvashkaKokoro IsomuraRecorded score (winner first): 6-1 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Winners
- 9
- Unforced errors
- 23
- First-serve points won
- 57%
- Break points saved
- 10
- Win12 May 2026
Challenger Bengaluru 2
Clay · Round of 32
Winner listed first
Kokoro IsomuraKaran SinghRecorded score (winner first): 6-6 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 6
- Winners
- 14
- Unforced errors
- 23
- First-serve points won
- 79%
- Break points saved
- 5
- Win20 Apr 2026
M25 Luzhou
Hard · R32
Winner listed first
Kokoro IsomuraPavle MarinkovRecorded score (winner first): 7-5 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 4
- Break points saved
- 5/7
- Break points faced
- 7
- First-serve points won
- 74%
- Loss20 Apr 2026
M25 Luzhou
Hard · QF
Winner listed first
Giles HusseyKokoro IsomuraRecorded score (winner first): 6-4 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Break points saved
- 8/12
- Break points faced
- 12
- First-serve points won
- 58%
- Win20 Apr 2026
M25 Luzhou
Hard · R16
Winner listed first
Kokoro IsomuraPietro Orlando FellinRecorded score (winner first): 6-1 3-6 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 4/6
- Break points faced
- 6
- First-serve points won
- 69%
- Win13 Apr 2026
Wuning 2 CH
Hard · Q1
Winner listed first
Kokoro IsomuraWeiwen PanRecorded score (winner first): 6-1 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 0/0
- Break points faced
- 0
- First-serve points won
- 92%
- Loss13 Apr 2026
Wuning 2 CH
Hard · Q2
Winner listed first
Leo VithoontienKokoro IsomuraRecorded score (winner first): 6-4 4-6 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 4
- Break points saved
- 4/6
- Break points faced
- 6
- First-serve points won
- 68%
- Loss30 Mar 2026
Miyazaki CH
Hard · Q1
Winner listed first
Carl Emil OverbeckKokoro IsomuraRecorded score (winner first): —
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 4/8
- Break points faced
- 8
- First-serve points won
- 47%
- Loss23 Mar 2026
Yokkaichi CH
Hard · R32
Winner listed first
Dan AddedKokoro IsomuraRecorded score (winner first): 6-4 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Break points saved
- 2/6
- Break points faced
- 6
- First-serve points won
- 47%
- Win16 Mar 2026
M15 Nishi-Tokyo
Hard · R32
Winner listed first
Kokoro IsomuraShota ShimaRecorded score (winner first): 3-6 7-6(2) 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Break points saved
- 8/14
- Break points faced
- 14
- First-serve points won
- 65%
- Loss16 Mar 2026
M15 Nishi-Tokyo
Hard · R16
Winner listed first
Sora FukudaKokoro IsomuraRecorded score (winner first): 7-5 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 1/4
- Break points faced
- 4
- First-serve points won
- 66%
- Loss9 Mar 2026
M15 Hinode
Hard · R16
Winner listed first
Leo VithoontienKokoro IsomuraRecorded score (winner first): 6-4 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 6/11
- Break points faced
- 11
- First-serve points won
- 55%
- Win9 Mar 2026
M15 Hinode
Hard · R32
Winner listed first
Kokoro IsomuraKosuke OguraRecorded score (winner first): 6-2 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 3/6
- Break points faced
- 6
- First-serve points won
- 63%
- Loss23 Feb 2026
Pune CH
Hard · Q1
Winner listed first
Tung Lin WuKokoro IsomuraRecorded score (winner first): 6-1 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 13/16
- Break points faced
- 16
- First-serve points won
- 59%
- Win9 Feb 2026
Brisbane 2 CH
Hard · Q1
Winner listed first
Kokoro IsomuraEthan CookRecorded score (winner first): 7-6(2) 6-1
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 3/5
- Break points faced
- 5
- First-serve points won
- 86%
- Win9 Feb 2026
Brisbane 2 CH
Hard · Q2
Winner listed first
Kokoro IsomuraOliver AndersonRecorded score (winner first): 6-4 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 2/3
- Break points faced
- 3
- First-serve points won
- 70%
- Loss9 Feb 2026
Brisbane 2 CH
Hard · R32
Winner listed first
Alex BoltKokoro IsomuraRecorded score (winner first): 7-5 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 6
- Break points saved
- 3/5
- Break points faced
- 5
- First-serve points won
- 72%
- Win2 Feb 2026
Brisbane 1 CH
Hard · Q2
Winner listed first
Kokoro IsomuraChase FergusonRecorded score (winner first): 6-3 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 2/2
- Break points faced
- 2
- First-serve points won
- 72%
- Win2 Feb 2026
Brisbane 1 CH
Hard · Q1
Winner listed first
Kokoro IsomuraTomislav Edward PapacRecorded score (winner first): 6-2 6-1
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 0/0
- Break points faced
- 0
- First-serve points won
- 95%
- Loss2 Feb 2026
Brisbane 1 CH
Hard · R32
Winner listed first
James MccabeKokoro IsomuraRecorded score (winner first): 6-2 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Break points saved
- 2/6
- Break points faced
- 6
- First-serve points won
- 50%
- Loss26 Jan 2026
Phan Thiet 2 CH
Hard · Q1
Winner listed first
Lorenzo CarboniKokoro IsomuraRecorded score (winner first): 6-3 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 5/10
- Break points faced
- 10
- First-serve points won
- 55%
- Loss5 Jan 2026
Nonthaburi 1 CH
Hard · Q2
Winner listed first
Hikaru ShiraishiKokoro IsomuraRecorded score (winner first): 6-2 0-6 6-1
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 3
- Break points saved
- 0/4
- Break points faced
- 4
- First-serve points won
- 62%
- Win5 Jan 2026
Nonthaburi 1 CH
Hard · Q1
Winner listed first
Kokoro IsomuraJi Sung NamRecorded score (winner first): 1-6 7-6(6) 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 9/14
- Break points faced
- 14
- First-serve points won
- 65%
- Loss24 Nov 2025
Playford CH
Hard · R32
Winner listed first
Karan SinghKokoro IsomuraRecorded score (winner first): 5-7 6-4 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 8/13
- Break points faced
- 13
- First-serve points won
- 62%
- Loss17 Nov 2025
Yokohama CH
Hard · R32
Winner listed first
Yusuke KusuharaKokoro IsomuraRecorded score (winner first): 7-5 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 4/7
- Break points faced
- 7
- First-serve points won
- 68%
- Loss10 Nov 2025
Kobe CH
Hard · R32
Winner listed first
Sho ShimabukuroKokoro IsomuraRecorded score (winner first): 7-6(1) 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 3
- Break points saved
- 1/4
- Break points faced
- 4
- First-serve points won
- 70%
- Loss3 Nov 2025
Matsuyama CH
Hard · R32
Winner listed first
Henrique RochaKokoro IsomuraRecorded score (winner first): 5-7 6-4 6-1
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Break points saved
- 8/14
- Break points faced
- 14
- First-serve points won
- 58%
- Win27 Oct 2025
Seoul CH
Hard · Q2
Winner listed first
Kokoro IsomuraYusuke TakahashiRecorded score (winner first): 6-2 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 4/6
- Break points faced
- 6
- First-serve points won
- 74%
- Win27 Oct 2025
Seoul CH
Hard · R32
Winner listed first
Kokoro IsomuraYosuke WatanukiRecorded score (winner first): 5-2 RET
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Break points saved
- 0/0
- Break points faced
- 0
- First-serve points won
- 92%
- Loss27 Oct 2025
Seoul CH
Hard · R16
Winner listed first
Elias YmerKokoro IsomuraRecorded score (winner first): 6-2 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 5/9
- Break points faced
- 9
- First-serve points won
- 67%
- Win27 Oct 2025
Seoul CH
Hard · Q1
Winner listed first
Kokoro IsomuraDong Ju KimRecorded score (winner first): 6-4 6-3
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 0
- Break points saved
- 0/3
- Break points faced
- 3
- First-serve points won
- 67%
- Loss20 Oct 2025
Suzhou CH
Hard · Q1
Winner listed first
Naoki TajimaKokoro IsomuraRecorded score (winner first): 6-3 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 3/6
- Break points faced
- 6
- First-serve points won
- 68%
- Loss15 Sep 2025
M25 Takasaki
Hard · QF
Winner listed first
Kaichi UchidaKokoro IsomuraRecorded score (winner first): 6-2 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 6/12
- Break points faced
- 12
- First-serve points won
- 55%
- Win15 Sep 2025
M25 Takasaki
Hard · R32
Winner listed first
Kokoro IsomuraHayato MatsuokaRecorded score (winner first): 7-5 3-6 6-4
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 10/13
- Break points faced
- 13
- First-serve points won
- 64%
- Win15 Sep 2025
M25 Takasaki
Hard · R16
Winner listed first
Kokoro IsomuraYuta TomidaRecorded score (winner first): 6-3 6-1
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 4/5
- Break points faced
- 5
- First-serve points won
- 70%
- Loss8 Sep 2025
M25 Sapporo
Hard · R16
Winner listed first
Mark WhitehouseKokoro IsomuraRecorded score (winner first): 7-5 7-5
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 3/7
- Break points faced
- 7
- First-serve points won
- 58%
- Win8 Sep 2025
M25 Sapporo
Hard · R32
Winner listed first
Kokoro IsomuraTaisei IchikawaRecorded score (winner first): 6-2 6-1
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 7/7
- Break points faced
- 7
- First-serve points won
- 65%
- Loss1 Sep 2025
Shanghai CH
Hard · R32
Winner listed first
Renta TokudaKokoro IsomuraRecorded score (winner first): 6-0 6-2
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 1
- Break points saved
- 7/13
- Break points faced
- 13
- First-serve points won
- 56%
- Win1 Sep 2025
Shanghai CH
Hard · Q2
Winner listed first
Kokoro IsomuraPetr Bar BiryukovRecorded score (winner first): 7-6(3) 7-5
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 4/6
- Break points faced
- 6
- First-serve points won
- 67%
- Win1 Sep 2025
Shanghai CH
Hard · Q1
Winner listed first
Kokoro IsomuraAjeet RaiRecorded score (winner first): 7-6(4) 7-6(6)
View matchAvailable match statistics
Kokoro Isomura · this match only · available fields
- Aces
- 2
- Break points saved
- 9/10
- Break points faced
- 10
- First-serve points won
- 74%