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TJPlayer research cockpit

Hiiro Sakamoto

TennisJack analysis

Hiiro Sakamoto currently has a useful TennisJack sample of 39 completed matches, with a 66.7% win rate in the loaded match history. The recent form line is 6-4 across the latest 10 completed matches.

Latest rank -
M
Matches39Completed matches
%
Win rate66.7%Across all matches
F
Latest form6-4In latest 10 matches
Performance metrics
Hold Base69.2%
Break Pressure36.8%
Latest form (10 matches)
6-4
W Oldest L 2 L 3 W 4 W 5 W 6 L 7 L 8 W 9 W Latest
Surface profile
Hardcourt outdoor 39 matches · 66.7% WR
jp flag
CountryjpCountry profile
PlayPendingHand not listed
Highest RankPendingSingles high not listed
Age / BirthdayPendingBirthday not listed
Profile intelligence

Ten signals worth watching.

Built from 39 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.

Strong starter Break-heavy player
Set 1 punch66.7%
Service shield69.2%
Return bite36.8%
Decider risk25.6%
02

Favorite / Underdog Split

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

Favorite 86.7% 13-2 - 15 matches Avg odds 1.37 | 1+ set 93.3%
Underdog 25.0% 2-6 - 8 matches Avg odds 3.41 | 1+ set 50.0%
03

First Set Personality

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

Set 1 win66.7%
Breaks first S153.1%
Broken first S146.9%
Recovers S126.7%
04

Break Pressure Profile

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

Avg breaks3.13
Avg broken2.62
Balance0.51
Clean service matches23.1%
3+ breaks produced61.5%
Set 2 win66.7%
05

Clean Win / Comeback Index

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

61.5%Clean 2-0 share among wins
Clean 2-0 wins16
Comeback signals25
Lost set 1, won match3
Comeback index64.1%
06

Surface Edge

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

Primary surfaceHardcourt outdoor
Primary record26-13
Primary WR66.7%
Best surfaceHardcourt outdoor 66.7%
Hardcourt outdoor26-1366.7%
07

Odds Value Pulse

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

Avg win odds1.75
Avg loss odds2.70
Biggest win odds6.50
2.00+ odds WR25.0%
2.00+ sample8
Odds sample23
08

Decider Profile

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

Three-set share25.6%
Decider record5-5
Set 3 win50.0%
After losing S123.1%
09

Close Set Risk

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

Close sets23-11
Close-set WR67.6%
Tie-breaks1-4
Matches with tight set25
10

Momentum Trend

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

Stable form · 2 wins running
W oldest L 2 L 3 W 4 W 5 W 6 L 7 L 8 W 9 W latest
Latest 5 3-2 60.0% WR
Trend delta +0.0% latest vs previous sample
Match log

All Hiiro Sakamoto matches in the TennisJack sample.

Scan date, tournament, surface, players, odds, final score, result and service-return indicators from completed matches.

Open Player Research
Loss
21.12.2025Final
UTR Pro KawaguchiHardcourt outdoor
Hiiro Sakamoto
vs
Taiyo Sato
1.53
2.38
4-6 6-4 3-6
Hold
53.3%
Break
35.7%
Loss
14.06.2025Final
UTR Pro TaiwanHardcourt outdoor
Hiiro Sakamoto
vs
Chen Hui Ho
2.10
1.67
1-6 6-2 6-7
Hold
61.5%
Break
33.3%