Player research cockpit

SeiyaNakanishi

TennisJack analysis

Seiya Nakanishi currently has a useful TennisJack sample of 38 completed matches, with a 23.7% win rate in the loaded match history. The recent form line is 1-9 across the latest 10 completed matches.

Latest rank #1972

Matches38Completed matches

Win rate23.7%Across all matches

Latest form1-9In latest 10 matches

Index statusReview candidateProfile confidence

Performance metrics

Hold Base50.8%

Break Pressure26.2%

Latest form (10 matches)

1-9

L L L L L L L L W L

Surface profile

Hardcourt outdoor

Canonical/players/seiya-nakanishi/

Index statusReview candidate

Last updatedData from TennisJack

Profile intelligence

Ten signals worth watching.

Built from 38 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.

Slow starter Break-heavy player

Set 1 punch26.3%

Service shield50.8%

Return bite26.2%

Decider risk23.7%

Favorite / Underdog Split

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

Favorite 54.5% 6-5 - 11 matches Avg odds 1.60 | 1+ set 81.8%

Underdog 9.5% 2-19 - 21 matches Avg odds 6.71 | 1+ set 23.8%

First Set Personality

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

Set 1 win26.3%

Breaks first S131.4%

Broken first S168.6%

Recovers S14.2%

Break Pressure Profile

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

Avg breaks2.50

Avg broken4.11

Balance-1.61

Clean service matches15.8%

3+ breaks produced39.5%

Set 2 win34.2%

Clean Win / Comeback Index

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

66.7%Clean 2-0 share among wins

Clean 2-0 wins6

Comeback signals12

Lost set 1, won match1

Comeback index31.6%

Surface Edge

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

Primary surfaceHardcourt outdoor

Primary record8-26

Primary WR23.5%

Best surfaceUnknown 25.0%

Hardcourt outdoor8-2623.5%

Unknown1-325.0%

Odds Value Pulse

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

Avg win odds2.02

Avg loss odds5.93

Biggest win odds4.50

2.00+ odds WR10.0%

2.00+ sample20

Odds sample32

Decider Profile

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

Three-set share23.7%

Decider record2-7

Set 3 win22.2%

After losing S13.6%

Close Set Risk

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

Close sets9-18

Close-set WR33.3%

Tie-breaks4-4

Matches with tight set21

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 L L L L L W L

Latest 5 WR20.0%

Previous 10 WR20.0%

Latest 51-4

Previous 102-8

Trend delta+0.0%

Latest 5 WR20.0%

Match log

All Seiya Nakanishi 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
10.09.2026	Seiya Nakanishi vs Kuan-Yi LeeM25 Sapporo	0-6 3-6Surface pending	Loss	Hold 28.6% Break 12.5%
08.09.2026	Seiya Nakanishi vs Kazushi IdogakiM25 Sapporo	6-0 7-6Surface pending	Win	Hold 77.8% Break 50.0%
07.09.2026	Seiya Nakanishi vs Makoto OchiM25 Sapporo	4-6 2-6Surface pending	Loss	Hold 55.6% Break 11.1%
02.09.2026	Seiya Nakanishi vs Naoya HondaM25 Urayasu	0-6 0-6Surface pending	Loss	Hold 0.0% Break 0.0%
03.06.2026	Seiya Nakanishi vs Tai Leonard SachM15 Harmon	3-6 2-6Hardcourt outdoor	Loss	Hold - Break -
20.02.2026	Seiya Nakanishi vs Naoki NakagawaUTR Pro Kawaguchi	1-6 3-6Hardcourt outdoor	Loss	Hold 37.5% Break 12.5%
19.02.2026	Seiya Nakanishi vs Kazuma KawachiUTR Pro Kawaguchi	3-6 2-6Hardcourt outdoor	Loss	Hold 44.4% Break 12.5%
17.02.2026	Seiya Nakanishi vs Kotaro MochizukiUTR Pro Kawaguchi	1-6 4-6Hardcourt outdoor	Loss	Hold 62.5% Break 0.0%
16.02.2026	Seiya Nakanishi vs Kosuke MoritaUTR Pro Kawaguchi	3-6 4-6Hardcourt outdoor	Loss	Hold 50.0% Break 22.2%
06.02.2026	Seiya Nakanishi vs Koyu YanagiUTR Pro Yokohama	0-6 7-6 1-6Hardcourt outdoor	Loss	Hold - Break -
05.02.2026	Seiya Nakanishi vs Dorian KosUTR Pro Yokohama	6-3 5-7 6-0Hardcourt outdoor	Win	Hold 78.6% Break 46.1%
04.02.2026	Seiya Nakanishi vs Taketo TakamisawaUTR Pro Yokohama	4-6 3-6Hardcourt outdoor	Loss	Hold 60.0% Break 11.1%
02.02.2026	Seiya Nakanishi vs Daisuke SumizawaUTR Pro Yokohama	1-6 0-6Hardcourt outdoor	Loss	Hold 14.3% Break 0.0%
01.02.2026Final	Seiya Nakanishi vs Christopher Kosei OnoUTR Pro Yokohama	6-2 6-1Hardcourt outdoor	Win	Hold 100.0% Break 62.5%
29.01.2026	Seiya Nakanishi vs Masaki TonakaUTR Pro Yokohama	0-6 3-6Hardcourt outdoor	Loss	Hold 14.3% Break 25.0%
28.01.2026	Seiya Nakanishi vs Natsuki YamamotoUTR Pro Yokohama	2-6 4-6Hardcourt outdoor	Loss	Hold 44.4% Break 22.2%
27.01.2026	Seiya Nakanishi vs Noritaka KoizumiUTR Pro Yokohama	3-6 2-6Hardcourt outdoor	Loss	Hold 44.4% Break 12.5%
26.01.2026	Seiya Nakanishi vs Ryotaro MatsumuraUTR Pro Yokohama	2-6 2-6Hardcourt outdoor	Loss	Hold 37.5% Break 12.5%
11.01.2026Final	Seiya Nakanishi vs Ryusuke HoriuchiUTR Pro Yokohama	6-3 3-6 0-6Hardcourt outdoor	Loss	Hold 25.0% Break 50.0%
10.01.2026SF	Seiya Nakanishi vs Kosuke MoritaUTR Pro Yokohama	4-6 6-2 6-1Hardcourt outdoor	Win	Hold 69.2% Break 58.3%
09.01.2026	Seiya Nakanishi vs Karl Kazuma LeeUTR Pro Yokohama	4-6 2-6Hardcourt outdoor	Loss	Hold 55.6% Break 11.1%
08.01.2026	Seiya Nakanishi vs Daiki YoshimuraUTR Pro Yokohama	4-6 3-6Hardcourt outdoor	Loss	Hold 30.0% Break 44.4%
06.01.2026	Seiya Nakanishi vs Shion YamadaUTR Pro Yokohama	6-7 1-6Hardcourt outdoor	Loss	Hold - Break -
05.01.2026	Seiya Nakanishi vs Yuga TashiroUTR Pro Yokohama	1-6 2-6Hardcourt outdoor	Loss	Hold 42.9% Break 0.0%
28.12.2025Final	Seiya Nakanishi vs Shintaro OgakiUTR Pro Kawaguchi	6-3 6-2Hardcourt outdoor	Win	Hold - Break -
27.12.2025SF	Seiya Nakanishi vs Kairi InoueUTR Pro Kawaguchi	6-3 6-1Hardcourt outdoor	Win	Hold 75.0% Break 75.0%
26.12.2025	Seiya Nakanishi vs Yuto MiyagawaUTR Pro Kawaguchi	5-7 6-4 2-6Hardcourt outdoor	Loss	Hold 53.3% Break 33.3%
25.12.2025	Seiya Nakanishi vs Ammar ElaminUTR Pro Kawaguchi	4-6 6-3 2-6Hardcourt outdoor	Loss	Hold 57.1% Break 30.8%
23.12.2025	Seiya Nakanishi vs Ryosuke InagawaUTR Pro Kawaguchi	6-2 4-6 6-7Hardcourt outdoor	Loss	Hold 60.0% Break 43.8%
22.12.2025	Seiya Nakanishi vs Ryotaro MatsumuraUTR Pro Kawaguchi	6-7 0-6Hardcourt outdoor	Loss	Hold 55.6% Break 10.0%
30.10.2025	Seiya Nakanishi vs Yuta KawahashiITF M15 Yanagawa	1-6 1-6Hardcourt outdoor	Loss	Hold 14.3% Break 14.3%
29.10.2025	Seiya Nakanishi vs Hong-Lin FuITF M15 Yanagawa	6-4 6-4Hardcourt outdoor	Win	Hold 80.0% Break 40.0%
18.10.2025SF	Seiya Nakanishi vs Chikaya SatoUTR Pro Kawaguchi	6-0 7-6Hardcourt outdoor	Win	Hold 77.8% Break 50.0%
17.10.2025	Seiya Nakanishi vs Dylan LeemanUTR Pro Kawaguchi	2-6 7-6 6-7Hardcourt outdoor	Loss	Hold 62.5% Break 22.2%
14.10.2025	Seiya Nakanishi vs Ryota TanumaUTR Pro Kawaguchi	2-6 3-6Hardcourt outdoor	Loss	Hold 44.4% Break 12.5%
14.10.2025	Seiya Nakanishi vs Christopher Kosei OnoUTR Pro Kawaguchi	6-2 6-4Hardcourt outdoor	Win	Hold 100.0% Break 33.3%
13.10.2025	Seiya Nakanishi vs Hien Q H PhamUTR Pro Kawaguchi	5-7 7-5 4-6Hardcourt outdoor	Loss	Hold 58.8% Break 35.3%
11.06.2025	Seiya Nakanishi vs Kenta MiyoshiM15 Harmon	0-6 2-6Hardcourt outdoor	Loss	Hold 14.3% Break 14.3%