Prediction of Issei Okamura vs Masaki Sasai Head-to-Head, At

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
I. Okamura vs M. Sasai

Issei Okamura

JPN

2

Win

Played

2

Win

Age

5'7" (170 cm)

Height

5'7" (170 cm)

870

C. Rank

Ret.

574

Best Rank

Total Titles

YTD Titles

Career Money

Right-Handed

Plays

Right-Handed

Masaki Sasai

JPN

2

Win

Played

2

Win

Age

5'7" (170 cm)

Height

5'7" (170 cm)

870

C. Rank

Ret.

574

Best Rank

Total Titles

YTD Titles

Career Money

Right-Handed

Plays

Right-Handed

Head-to-head: Okamura 2 - 2 Sasai

They have played 8 sets in total, with Issei Okamura winning 4 and Masaki Sasai winning 4. The last match between Issei Okamura and Masaki Sasai was at the Japan F3 (Kofu), 18-03-2018, Round: Q3, Surface: Hard, with Issei Okamura getting the victory 6-3 6-1.

Players	Head To Head Match Wins
Okamura	2
Sasai	2

Last 4 H2H Matches:

(Q3) Japan F3 (Kofu)(03-18-18)

Stats

Issei Okamura

Masaki Sasai

(Q3) Japan F2(03-16-15)

Stats

Masaki Sasai

Issei Okamura

(R2) Japan F4(03-31-14)

Stats

Issei Okamura

Masaki Sasai

I. Okamura vs M. Sasai H2H Profile

I. Okamura	Stats	M. Sasai
$0	Career Prize Money	$0
47.67% (246-270)	Career Total W/L	55.94% (113-89)
2	Hard	2
2	Total H2H Matches	2
0% (0-0)	YTD Win/Loss	0% (0-0)

I. Okamura vs M. Sasai Match Preview:

Second serve performance recent form: In recent form (last 6 months), Issei Okamura has won 40.72% of points on their second serve, while Masaki Sasai has won 0%. 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 41.01% of their opponent's second serve points, while Masaki Sasai has won 0%. The same stats for first serve returns are 24.92% and 0% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Issei Okamura has saved 45.61% of breakpoints in recent form, whereas Masaki Sasai has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Issei Okamura has won 48.72% of matches played (W/L 19/20), with Masaki Sasai winning 0% (W/L 0/0) 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). Masaki Sasai has their best career surface win % on Hard, winning 67% (W/L 88/54), and worse career win % on I.hard, winning 33% (W/L 1/2).
Player level: In the last year, Issei Okamura has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 48.72% of matches (W/L 19/20), where as Masaki Sasai has played most of their matches on the N/A, winning 0% of matches (W/L 0/0). 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 2 times and Masaki Sasai being victorious 2 times. They have played 8 sets in total, with Issei Okamura winning 4 and Masaki Sasai winning 4.
The last match between Issei Okamura and Masaki Sasai was at the Japan F3 (Kofu), 18-03-2018, Round: Q3, Surface: Hard, with Issei Okamura getting the victory 6-3 6-1.
Head to head match duration: In past head to head matches, the average match time between these players has been 0:0:0.
Opponent quality stats: Over the last 12 months, Issei Okamura has played against opponents with an average rank of 282.26 while Masaki Sasai has played against players with an average rank of 0.
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 50% of deciding sets over the last 12 months, while Masaki Sasai has won 0% in all matches played on tour.
Break point conversion: In recent form, Issei Okamura has converted 23.91% of breakpoint opportunities, and Masaki Sasai has converted 0% 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 Masaki Sasai Editorial Preview By TennisTipster88.

I. Okamura vs M. Sasai H2H Stats Used In Our Predictions

I. Okamura	Stats	M. Sasai
2	H2H Matches Won	2
4	Sets Won	4
30	Games Won	34
0:0:0	Average Match Time	0:0:0
50% (2/4)	Best‑of‑3 Win %	50% (2/4)
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

M. Sasai Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Japan F8 (Akishima) - 11-06-2018
Q2 Masayoshi OnoM. Ono	L	7-5 6-4	Stats
Q1 Yusei FukuokaY. Fukuoka	W	6-0 6-1	Stats
Japan F7 (Karuizawa) - 04-06-2018
R1 Rio NoguchiR. Noguchi	L	6-2 2-0 ret.	Stats
Q1 Takuya KureokaT. Kureoka	W	6-2 6-3	Stats
Q3 Shoji SatoS. Sato	W	6-1 7-5	Stats

View All

I. Okamura vs M. Sasai Stats Breakdown Vs All H2H Opponents

I. Okamura	Stats	M. Sasai
47.67% (246/270)	YTD Win/Loss	55.94% (113/89)
48.10% (558/602)	Sets Win/Loss	54.88% (242/199)
49.25% (5292/5454)	Games Win/Loss	53.37% (2053/1794)
49.88% (203/204)	Hard Win/Loss	61.97% (88/54)
44.00% (33/42)	Clay Win/Loss	50.00% (16/16)
21.43% (6/22)	Indoor Hard W/L	32.00% (8/17)
66.67% (4/2)	Grass Win/Loss	33.33% (1/2)
0.13	Aces Per Game	0.04
676	Aces Total	67
0.19	Double Faults Per Game	0.03
997	Total Double Faults	64
1:7:51	Average Match Time	1st Match
477.21	Average Opponent Rank	108.99
61% (13952/22795)	1st Serve %	65% (1657/2564)
64% (8954/13952)	1st Serve Win %	62% (1023/1657)
47% (4192/8843)	2nd Serve Win %	49% (443/907)
42% (915/2180)	Break Points Won % (Total)	50% (95/189)
39% (8872/22653)	Return Points Win %	38% (927/2444)
29.73% (11/26)	Challenger W/L	30.77% (4/9)
49.06% (235/244)	Futures W/L	57.67% (109/80)
47% (240/509)	Best of 3 Sets Win %	56% (111/200)
100% (2/2)	Best of 5 Sets Win %	100% (1/1)
48% (51/106)	Tiebreaks Win % (Total)	50% (13/26)
46% (61/132)	Deciding Set Win %	54% (20/37)
85% (261/221)	1st Set Won, Won Match	91% (114/104)
15% (261/40)	1st Set Won, Lost Match	9% (114/10)
9% (254/24)	1st Set Lost, Won Match	10% (88/9)