Player research cockpit

KoharuNiimi

TennisJack analysis

Koharu Niimi currently has a thin TennisJack sample of 9 completed matches, with a 33.3% win rate in the loaded match history. The recent form line is 3-6 across the latest 9 completed matches.

Latest rank -

Matches9Completed matches

Win rate33.3%Across all matches

Latest form3-6In latest 9 matches

Index statusDo not index yetProfile confidence

Performance metrics

Hold Base49.5%

Break Pressure45.8%

Latest form (9 matches)

3-6

L L L W W L L W L

Surface profile

Hardcourt outdoor

Canonical/players/koharu-niimi/

Index statusDo not index yet

Last updatedData from TennisJack

Profile intelligence

Ten signals worth watching.

Built from 9 completed TennisJack matches: form, surface, odds, pressure and close-set behavior. The full match log stays below for audit.

Player DNA

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

Balanced starts Break-heavy player Close-set risk

Set 1 punch44.4%

Service shield49.5%

Return bite45.8%

Decider risk55.6%

Favorite / Underdog Split

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

Favorite 50.0% 1-1 - 2 matches Avg odds 1.39 | 1+ set 100.0%

Underdog 33.3% 2-4 - 6 matches Avg odds 2.75 | 1+ set 66.7%

First Set Personality

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

Set 1 win44.4%

Breaks first S112.5%

Broken first S187.5%

Recovers S157.1%

Break Pressure Profile

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

Avg breaks3.78

Avg broken4.44

Balance-0.67

Clean service matches22.2%

3+ breaks produced66.7%

Set 2 win55.6%

Clean Win / Comeback Index

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

0.0%Clean 2-0 share among wins

Clean 2-0 wins0

Comeback signals4

Lost set 1, won match0

Comeback index44.4%

Surface Edge

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

Primary surfaceHardcourt outdoor

Primary record3-4

Primary WR42.9%

Best surfaceHardcourt outdoor 42.9%

Hardcourt outdoor3-442.9%

Carpet indoor0-10.0%

Grass0-10.0%

Odds Value Pulse

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

Avg win odds1.88

Avg loss odds2.72

Biggest win odds2.50

2.00+ odds WR40.0%

2.00+ sample5

Odds sample8

Decider Profile

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

Three-set share55.6%

Decider record1-4

Set 3 win20.0%

After losing S10.0%

Close Set Risk

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

Close sets3-4

Close-set WR42.9%

Tie-breaks1-0

Matches with tight set6

Momentum Trend

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

Stable form · 1 losses running

L L L W W L L W L

Latest 5 WR40.0%

Previous 10 WR25.0%

Latest 52-3

Previous 101-3

Trend delta+15.0%

Latest 5 WR40.0%

Match log

All Koharu Niimi 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

Date	Match	Score	Result	Hold / Break
13.05.2026	Koharu Niimi vs Honori KoyamaW15 Toyama	1-6 4-6Hardcourt outdoor	Loss	Hold 44.4% Break 12.5%
12.05.2026	Koharu Niimi vs Kokoa NakaoW15 Toyama	6-3 6-0Hardcourt outdoor	Win	Hold 87.5% Break 71.4%
05.05.2026	Koharu Niimi vs Remika OhashiW35 Fukuoka	4-6 3-6Carpet indoor	Loss	Hold 30.0% Break 44.4%
26.03.2026	Koharu Niimi vs Natsuho ArakawaW15 Swan Hill	2-6 6-4 0-6Grass	Loss	Hold 41.7% Break 25.0%
06.02.2026	Koharu Niimi vs Honori KoyamaUTR Pro Yokohama Women	6-3 3-6 6-1Hardcourt outdoor	Win	Hold 46.1% Break 75.0%
05.02.2026	Koharu Niimi vs Natsuho ArakawaUTR Pro Yokohama Women	7-6 7-5Hardcourt outdoor	Win	Hold 58.3% Break 46.1%
03.02.2026	Koharu Niimi vs Rena TanakaUTR Pro Yokohama Women	3-6 6-2 5-7Hardcourt outdoor	Loss	Hold - Break -
02.02.2026	Koharu Niimi vs Funa KozakiUTR Pro Yokohama Women	6-3 4-6 1-6Hardcourt outdoor	Loss	Hold 38.5% Break 46.1%
18.06.2025	Koharu Niimi vs Ran WakanaITF W15 Sapporo	2-6 6-2 2-6Hardcourt outdoor	Loss	Hold - Break -