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HiromasaKoyama

TennisJack analysis

Hiromasa Koyama currently has a useful TennisJack sample of 34 completed matches, with a 50.0% win rate in the loaded match history. The recent form line is 8-2 across the latest 10 completed matches.

Latest rank #1371
M
Matches34Completed matches
%
Win rate50.0%Across all matches
F
Latest form8-2In latest 10 matches
I
Index statusReview candidateProfile confidence
Performance metrics
Hold Base66.9%
Break Pressure33.1%
Latest form (10 matches)
8-2
W W L W L W W W W W
Surface profile
Unknown
Canonical/players/hiromasa-koyama/
Index statusReview candidate
Last updatedData from TennisJack
Profile intelligence

Ten signals worth watching.

Built from 34 completed TennisJack matches: form, surface, odds, pressure and close-set behavior. The full match log stays below for audit.

01

Player DNA

Quick fingerprint from starts, service base, return bite and decider exposure.

Balanced starts Break-heavy player
Set 1 punch55.9%
Service shield66.9%
Return bite33.1%
Decider risk20.6%
02

Favorite / Underdog Split

How the player behaves when priced as market favorite versus outsider.

Favorite 70.0% 7-3 - 10 matches Avg odds 1.38 | 1+ set 80.0%
Underdog 25.0% 3-9 - 12 matches Avg odds 3.51 | 1+ set 41.7%
03

First Set Personality

Shows whether the player starts cleanly, breaks first, or survives early pressure.

Set 1 win55.9%
Breaks first S162.5%
Broken first S137.5%
Recovers S116.7%
04

Break Pressure Profile

Return damage versus service leakage, built from set-level break counters.

Avg breaks3.09
Avg broken3.09
Balance0.00
Clean service matches14.7%
3+ breaks produced55.9%
Set 2 win47.1%
05

Clean Win / Comeback Index

Separates smooth 2-0 wins from matches where the player had to repair damage.

41.2%Clean 2-0 share among wins
Clean 2-0 wins7
Comeback signals15
Lost set 1, won match1
Comeback index44.1%
06

Surface Edge

Where the profile is most trustworthy and where the win rate really travels.

Primary surfaceUnknown
Primary record12-7
Primary WR63.2%
Best surfaceUnknown 63.2%
Unknown12-763.2%
Hardcourt outdoor2-722.2%
Clay3-260.0%
Hardcourt indoor0-10.0%
07

Odds Value Pulse

Shows whether the player wins as expected or creates value at outsider prices.

Avg win odds1.70
Avg loss odds3.24
Biggest win odds3.40
2.00+ odds WR25.0%
2.00+ sample12
Odds sample22
08

Decider Profile

How often matches become complicated, and whether the player survives the third set.

Three-set share20.6%
Decider record3-4
Set 3 win42.9%
After losing S16.7%
09

Close Set Risk

Tie-break and 7-5 / 7-6 pressure profile, useful for spotting fragile edges.

Close sets19-15
Close-set WR55.9%
Tie-breaks7-6
Matches with tight set24
10

Momentum Trend

Compares the latest 5 matches with the previous 10 so form shifts are visible immediately.

Heating up · 5 wins running
W W L W L W W W W W
Latest 5 WR100.0%
Previous 10 WR40.0%
Latest 55-0
Previous 104-6
Trend delta+60.0%
Latest 5 WR100.0%
Match log

All Hiromasa Koyama matches in the TennisJack sample.

Scan date, tournament, surface, opponent, set score, result and service-return indicators before opening the deeper tools.

Open Player Research
DateMatchScoreResultHold / Break
13.09.2026 Hiromasa Koyama vs Zhao ZhaoM15 Wuning 6-1 6-3Surface pending Win
Hold
87.5%
Break
62.5%
12.09.2026 Hiromasa Koyama vs Jaesung ChoeM15 Wuning 6-4 7-5Surface pending Win
Hold
72.7%
Break
45.5%
11.09.2026 Hiromasa Koyama vs Wishaya TrongcharoenchaikulM15 Wuning 6-1 6-4Surface pending Win
Hold
88.9%
Break
50.0%
10.09.2026 Hiromasa Koyama vs Zichen ShaoM15 Wuning 6-4 6-4Surface pending Win
Hold
80.0%
Break
40.0%
09.09.2026 Hiromasa Koyama vs Yue XiaM15 Wuning 6-1 6-4Surface pending Win
Hold
87.5%
Break
55.6%
03.09.2026 Hiromasa Koyama vs Qian SunM15 Wuning 4-6 4-6Surface pending Loss
Hold
80.0%
Break
0.0%
02.09.2026 Hiromasa Koyama vs Lachlan VickeryM15 Wuning 6-3 6-2Surface pending Win
Hold
62.5%
Break
77.8%
27.08.2026 Hiromasa Koyama vs Luca CastelnuovoM25 Taipei 6-3 6-7 1-6Surface pending Loss
Hold
53.3%
Break
35.7%
26.08.2026 Hiromasa Koyama vs Shinji HazawaM25 Taipei 6-7 6-1 6-2Surface pending Win
Hold
71.4%
Break
57.1%
18.08.2026 Hiromasa Koyama vs Yuki MochizukiM25 Taipei 6-4 6-4Surface pending Win
Hold
70.0%
Break
50.0%
08.07.2026 Hiromasa Koyama vs Matthew DellavedovaM15 Tokyo 6-7 0-6Surface pending Loss
Hold
44.4%
Break
20.0%
30.06.2026 Hiromasa Koyama vs Yusuke TakahashiM15 Tokyo 6-7 2-6Surface pending Loss
Hold
60.0%
Break
18.2%
10.06.2026 Hiromasa Koyama vs Hayden JonesM15 Tokyo 4-6 6-7Surface pending Loss
Hold
72.7%
Break
16.7%
06.06.2026 Hiromasa Koyama vs Youssef Kadiri HassaniM15 Harmon 4-6 7-6 4-6Surface pending Loss
Hold
62.5%
Break
25.0%
05.06.2026 Hiromasa Koyama vs Colin SinclairM15 Harmon 7-6 7-6Surface pending Win
Hold
100.0%
Break
0.0%
04.06.2026 Hiromasa Koyama vs Hoyoung RohM15 Harmon 7-6 6-2Hardcourt outdoor Win
Hold
90.0%
Break
27.3%
03.06.2026 Hiromasa Koyama vs Adrian ArconM15 Harmon 6-4 6-2Surface pending Win
Hold
77.8%
Break
55.6%
30.05.2026 Hiromasa Koyama vs Jake DelaneyM15 Karuizawa 3-6 1-6Surface pending Loss
Hold
50.0%
Break
0.0%
29.05.2026 Hiromasa Koyama vs Hikaru ShiraishiM15 Karuizawa 7-6 2-6 6-3Surface pending Win
Hold
53.3%
Break
40.0%
28.05.2026 Hiromasa Koyama vs Noritaka KoizumiM15 Karuizawa 6-4 6-4Clay Win
Hold
70.0%
Break
50.0%
27.05.2026 Hiromasa Koyama vs Ryota TanumaM15 Karuizawa 6-1 4-6 7-6Surface pending Win
Hold
73.3%
Break
33.3%
16.04.2026 Hiromasa Koyama vs Toufik SahtaliM15 Monastir 6-7 2-6Hardcourt outdoor Loss
Hold
50.0%
Break
30.0%
13.04.2026 Hiromasa Koyama vs Stefano PapagnoM15 Monastir 6-2 6-4Hardcourt outdoor Win
Hold
77.8%
Break
55.6%
06.04.2026 Hiromasa Koyama vs Anton SheppM15 Monastir 3-6 1-6Hardcourt outdoor Loss
Hold
37.5%
Break
12.5%
18.03.2026 Hiromasa Koyama vs Ryan NijboerM25 Badalona 3-6 2-6Clay Loss
Hold
33.3%
Break
25.0%
17.03.2026 Hiromasa Koyama vs Noah RegasM25 Badalona 7-6 6-2Clay Win
Hold
90.0%
Break
27.3%
04.03.2026 Hiromasa Koyama vs Dominik PalanM15 Torello 5-7 1-6Hardcourt outdoor Loss
Hold
44.4%
Break
20.0%
25.02.2026 Hiromasa Koyama vs Samuel HerediaM15 Villena 2-6 3-6Hardcourt outdoor Loss
Hold
33.3%
Break
25.0%
17.02.2026 Hiromasa Koyama vs Bekkhan AtlangerievM15 Villena 1-6 2-6Hardcourt outdoor Loss
Hold
-
Break
-
25.12.2025 Hiromasa Koyama vs Nikola JovicM15 Antalya 6-2 5-3Clay Win
Hold
-
Break
-
19.12.2025 Hiromasa Koyama vs Ozan BarisM15 Antalya 1-6 2-6Clay Loss
Hold
-
Break
-
22.10.2025 Hiromasa Koyama vs Toshiki KarigyoITF M15 Tanagura 6-3 5-7 1-6Hardcourt outdoor Loss
Hold
64.3%
Break
21.4%
02.09.2025 Hiromasa Koyama vs Shinji HazawaITF M25 Sapporo 6-3 1-6 4-5Hardcourt outdoor Loss
Hold
69.2%
Break
15.4%
11.08.2025 Hiromasa Koyama vs Dong Ju KimM15 Singapore 4-6 3-6Hardcourt indoor Loss
Hold
-
Break
-