Issei Okamura vs Kazuki Nishiwaki Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
I. Okamura vs K. Nishiwaki

Issei Okamura

JPN

2

Win

Played

2

Win

Age

5'7" (170 cm)

Height

5'10" (178 cm)

870

C. Rank

747

574

Best Rank

608

Total Title

YTD Titles

Career Money

Right-Handed

Plays

Right-Handed

Kazuki Nishiwaki

JPN

2

Win

Played

2

Win

Age

5'7" (170 cm)

Height

5'10" (178 cm)

870

C. Rank

747

574

Best Rank

608

Total Title

YTD Titles

Career Money

Right-Handed

Plays

Right-Handed

Head-to-head: Okamura 2 - 2 Nishiwaki

They have played 7 sets in total, with Issei Okamura winning 3 and Kazuki Nishiwaki winning 4. The last match between Issei Okamura and Kazuki Nishiwaki was at the M25 Hong Kong, 27-08-2024, Round: R1, Surface: Hard, with Issei Okamura getting the victory 6-2 6-4.

Players	Head To Head Match Wins
Okamura	2
Nishiwaki	2

Last H2H Matches:

(R1) M25 Hong Kong(08-27-24)

Stats

Issei Okamura

Kazuki Nishiwaki

(R2) Hong Kong F1 (Hong Kong)(06-27-18)

Stats

Issei Okamura

Kazuki Nishiwaki

(R1) Japan F6 (Matsuyama)(04-09-18)

Stats

Kazuki Nishiwaki

Issei Okamura

I. Okamura vs K. Nishiwaki H2H Profile

I. Okamura	Stats	K. Nishiwaki
$0	Career Prize Money	$0
47.67% (246-270)	Career Total W/L	52.35% (167-152)
2	Hard	2
2	Total H2H Matches	2
0% (0-0)	YTD Win/Loss	0% (0-0)

I. Okamura vs K. Nishiwaki Match Preview:

Second serve performance recent form: In recent form (last 6 months), Issei Okamura has won 43.63% of points on their second serve, while Kazuki Nishiwaki has won 47.14%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Issei Okamura, in recent form, has won 42.54% of their opponent's second serve points, while Kazuki Nishiwaki has won 42.28%. The same stats for first serve returns are 25.78% and 27.27% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Issei Okamura has saved 48.57% of breakpoints in recent form, whereas Kazuki Nishiwaki has saved 42.05% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Issei Okamura has won 48.98% of matches played (W/L 24/25), with Kazuki Nishiwaki winning 44.44% (W/L 16/20) that gives us an overall head-to head prediction overview.
Best surface: Issei Okamura has their best career surface win % on Grass, winning 67% (W/L 4/2), and worse career win % on I.hard, winning 13% (W/L 2/13). Kazuki Nishiwaki has their best career surface win % on Clay, winning 67% (W/L 25/22), and worse career win % on I.hard, winning 36% (W/L 4/7).
Player level: In the last year, Issei Okamura has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 48.98% of matches (W/L 24/25), where as Kazuki Nishiwaki has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 44.44% of matches (W/L 16/20). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
Direct H2H matches: They have played 4 times before with Issei Okamura winning 1 times and Kazuki Nishiwaki being victorious 2 times. They have played 7 sets in total, with Issei Okamura winning 3 and Kazuki Nishiwaki winning 4.
The last match between Issei Okamura and Kazuki Nishiwaki was at the M25 Hong Kong, 27-08-2024, Round: R1, Surface: Hard, with Issei Okamura getting the victory 6-2 6-4.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:29:45.
Opponent quality stats: Over the last 12 months, Issei Okamura has played against opponents with an average rank of 312.73 while Kazuki Nishiwaki has played against players with an average rank of 218.42.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Issei Okamura has won 55% of deciding sets over the last 12 months, while Kazuki Nishiwaki has won 20% in all matches played on tour.
Break point conversion: In recent form, Issei Okamura has converted 21.52% of breakpoint opportunities, and Kazuki Nishiwaki has converted 34.88% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Issei Okamura vs Kazuki Nishiwaki Editorial Preview By TennisTipster88.

I. Okamura vs K. Nishiwaki H2H Stats Used In Our Predictions

I. Okamura	Stats	K. Nishiwaki
1	H2H Matches Won	2
3	Sets Won	4
32	Games Won	36
3	Aces (Total)	7
11	Total Double Faults	7
1:29:45	Average Match Time	1:29:45
63% (141/225)	1st Serve %	67% (147/220)
58% (82/141)	1st Serve Win %	64% (94/147)
45% (38/84)	2nd Serve Win %	48% (35/73)
41% (11/27)	Break Pts Won %	65% (13/20)
41% (91/220)	Return Points Win %	47% (105/225)
33% (1/3)	Best‑of‑3 Win %	67% (2/3)
100% (2/2)	1st Set Won, Won Match	100% (2/2)
0% (0/2)	1st Set Won, Lost Match	0% (0/2)
0% (0/2)	1st Set Lost, Won Match	0% (0/2)

Recent Performance Stats

I. Okamura Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
M25 Takasaki - 15-09-2025
Q1 Jonathan MridhaJ. Mridha	L	6-3 7-6(5)	Stats
M25 Sapporo - 08-09-2025
Q1 Natsuki YamamotoN. Yamamoto	L	6-2 4-6 10-5	Stats
M25 Sapporo - 01-09-2025
R1 Naoya HondaN. Honda	L	6-3 6-2	Stats
Q3 Seiya NakanishiS. Nakanishi	W	4-6 7-6(5) 10-8	Stats
M15 Singapore - 11-08-2025
R1 Antoine BergerA. Berger	L	6-1 6-1	Stats

View All

K. Nishiwaki Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
M25 Bali - 08-09-2025
QF Arthur WeberA. Weber	L	6-3 ret.	Stats
R1 Vladislav MelnicV. Melnic	W	6-0 6-3	Stats
R2 Digvijaypratap SinghD. Singh	W	7-6(2) 3-6 6-4	Stats
Q3 Diogo MoraisD. Morais	W	6-3 6-0	Stats
Q1 Aditya KothariA. Kothari	W	6-1 6-0	Stats

View All

I. Okamura vs K. Nishiwaki Stats Breakdown Vs All H2H Opponents

I. Okamura	Stats	K. Nishiwaki
47.67% (246/270)	YTD Win/Loss	52.35% (167/152)
48.10% (558/602)	Sets Win/Loss	52.46% (373/338)
49.25% (5292/5454)	Games Win/Loss	51.25% (3374/3209)
49.88% (203/204)	Hard Win/Loss	52.40% (131/119)
44.00% (33/42)	Clay Win/Loss	53.19% (25/22)
21.43% (6/22)	Indoor Hard W/L	50.00% (11/11)
66.67% (4/2)	Grass Win/Loss	0% (0/0)
0.13	Aces Per Game	0.25
676	Aces Total	790
0.19	Double Faults Per Game	0.17
997	Total Double Faults	547
1:7:51	Average Match Time	1:6:15
476.68	Average Opponent Rank	438.82
61% (13952/22795)	1st Serve %	60% (8488/14155)
64% (8954/13952)	1st Serve Win %	68% (5743/8488)
47% (4192/8843)	2nd Serve Win %	48% (2712/5667)
42% (915/2180)	Break Points Won % (Total)	41% (576/1400)
39% (8872/22653)	Return Points Win %	40% (5563/14035)
29.73% (11/26)	Challenger W/L	20.00% (3/12)
49.06% (235/244)	Futures W/L	53.95% (164/140)
47% (240/509)	Best of 3 Sets Win %	53% (163/308)
100% (2/2)	Best of 5 Sets Win %	67% (2/3)
48% (51/106)	Tiebreaks Win % (Total)	52% (34/66)
46% (61/132)	Deciding Set Win %	49% (38/78)
85% (261/221)	1st Set Won, Won Match	84% (167/140)
15% (261/40)	1st Set Won, Lost Match	16% (167/26)
9% (254/24)	1st Set Lost, Won Match	18% (152/27)