JY
ATP · Rank #1131
ATP · Rank #1131
Jumpei Yamasaki
29yrs
1.80 m
75 kg
Right
45.8%Accuracy
24
Matches Analyzed
Recent Form
LWWLW
Recent & Upcoming
Tap a match for full analysis
H. Shiraishi vs J. Yamasaki, ITF Men - M15 Yanagawa City, 02:00, Finished. Match winner odds: 1.5 for H. Shiraishi, 2.4 for J. Yamasaki. AI winner pick: H. Shiraishi, odds 1.5, confidence 5.6 out of 10. This tip won. Predicted score: 6-3, 6-3. Best AI tip: H. Shiraishi, odds 1.5, confidence 5.6 out of 10. This tip won.
H. Shiraishi
J. Yamasaki
J. Yamasaki vs N. Koizumi, ITF Men - M15 Yanagawa City, 01:00, Finished. Match winner odds: 1.32 for J. Yamasaki, 3.05 for N. Koizumi. AI winner pick: J. Yamasaki, odds 1.32, confidence 2.5 out of 10. This tip won. Predicted score: 3-6, 6-3, 6-2. Best AI tip: J. Yamasaki, odds 1.32, confidence 2.5 out of 10. This tip won.
J. Yamasaki
N. Koizumi
J. Yamasaki vs J. Connel, ITF Men - M15 Yanagawa City, 01:00, Finished. Match winner odds: 1.98 for J. Yamasaki, 1.83 for J. Connel. AI winner pick: J. Connel, odds 1.83, confidence 5.2 out of 10. This tip lost. Predicted score: 4-6, 3-6. Best AI tip: J. Connel, odds 1.83, confidence 5.2 out of 10. This tip lost.
J. Yamasaki
J. Connel
02:00
Finished
0200
H. Shiraishi
J. Yamasaki
2
1
▾1.5
▴2.4
1
▾1.5
6363
1
▾1.5
5.6/10
01:00
Finished
0100
J. Yamasaki
N. Koizumi
2
0
▾1.32
▴3.05
1
▾1.32
366362
1
▾1.32
2.5/10
01:00
Finished
0100
J. Yamasaki
J. Connel
2
0
1.98
1.83
2
1.83
4636
2
1.83
5.2/10
C. Hou vs J. Yamasaki, ITF Men - M15 Tanagura, 01:00, Finished. Match winner odds: 4 for C. Hou, 1.23 for J. Yamasaki. AI winner pick: J. Yamasaki, odds 1.23, confidence 1.8 out of 10. This tip lost. Predicted score: 3-6, 4-6. Best AI tip: J. Yamasaki, odds 1.23, confidence 1.8 out of 10. This tip lost.
C. Hou
J. Yamasaki
M. Malaszszak vs J. Yamasaki, ITF Men - M15 Tanagura, 03:00, Finished. Match winner odds: 2.68 for M. Malaszszak, 1.5 for J. Yamasaki. AI winner pick: J. Yamasaki, odds 1.5, confidence 2.6 out of 10. This tip won. Predicted score: 6-2, 5-7, 4-6. Best AI tip: O21.5, odds 1.95, confidence 6.3 out of 10. This tip lost.
M. Malaszszak
J. Yamasaki
J. Yamasaki vs Y. Tomida, ITF Men - M15 Tanagura, 05:30, Finished. Match winner odds: 1.87 for J. Yamasaki, 1.9 for Y. Tomida. AI winner pick: Y. Tomida, odds 1.9, confidence 8.6 out of 10. This tip lost. Predicted score: 3-6, 2-6. Best AI tip: Y. Tomida, odds 1.9, confidence 8.6 out of 10. This tip lost.
J. Yamasaki
Y. Tomida
01:00
Finished
0100
C. Hou
J. Yamasaki
2
0
4
1.23
2
1.23
3646
2
1.23
1.8/10
03:00
Finished
0300
M. Malaszszak
J. Yamasaki
0
2
2.68
1.5
2
1.5
625746
O21.5
1.95
6.3/10
05:30
Finished
0530
J. Yamasaki
Y. Tomida
2
1
▾1.87
▴1.9
2
▴1.9
3626
2
▴1.9
8.6/10
J. Yamasaki vs J. Kim, ITF Men - M15 Tokyo, 04:07, Finished. Match winner odds: 2.42 for J. Yamasaki, 1.5 for J. Kim. AI winner pick: J. Kim, odds 1.5, confidence 1.2 out of 10. This tip won. Predicted score: 2-6, 5-7. Best AI tip: J. Kim, odds 1.5, confidence 1.2 out of 10. This tip won.
J. Yamasaki
J. Kim
J. Yamasaki vs H. Jones, ITF Men - M15 Tokyo, 04:11, Finished. Match winner odds: 1.68 for J. Yamasaki, 2.07 for H. Jones. AI winner pick: H. Jones, odds 2.07, confidence 2.8 out of 10. This tip lost. Predicted score: 3-6, 4-6. Best AI tip: U21.5, odds 1.97, confidence 3.5 out of 10. This tip won.
J. Yamasaki
H. Jones
C. Sinclair vs J. Yamasaki, ITF Men - M15 Tokyo, 04:11, Finished. Match winner odds: 1.59 for C. Sinclair, 2.23 for J. Yamasaki. AI winner pick: C. Sinclair, odds 1.59, confidence 6.8 out of 10. This tip lost. Predicted score: 6-3, 7-5. Best AI tip: C. Sinclair, odds 1.59, confidence 6.8 out of 10. This tip lost.
C. Sinclair
J. Yamasaki
04:07
Finished
0407
J. Yamasaki
J. Kim
0
2
2.42
1.5
2
1.5
2657
2
1.5
1.2/10
04:11
Finished
0411
J. Yamasaki
H. Jones
2
0
▴1.68
▾2.07
2
▾2.07
3646
U21.5
▴1.97
3.5/10
04:11
Finished
0411
C. Sinclair
J. Yamasaki
0
2
▾1.59
▴2.23
1
▾1.59
6375
1
▾1.59
6.8/10
J. Yamasaki vs M. Imamura, ITF Men - M25 Nakhon Pathom, 04:00, Finished. Match winner odds: 3.05 for J. Yamasaki, 1.38 for M. Imamura. AI winner pick: M. Imamura, odds 1.38, confidence 3.3 out of 10. This tip won. Predicted score: 6-4, 4-6, 3-6. Best AI tip: O19.5, odds 1.59, confidence 8.0 out of 10. This tip lost.
J. Yamasaki
M. Imamura
M. Sureshkumar vs J. Yamasaki, ITF Men - M25 Nakhon Pathom, 05:30, Finished. Match winner odds: 2.3 for M. Sureshkumar, 1.54 for J. Yamasaki. AI winner pick: M. Sureshkumar, odds 2.3, confidence 1.3 out of 10. This tip lost. Predicted score: 7-5, 6-3. Best AI tip: U22.5, odds 1.61, confidence 1.5 out of 10. This tip lost.
M. Sureshkumar
J. Yamasaki
04:00
Finished
0400
J. Yamasaki
M. Imamura
0
2
▾3.05
▴1.38
2
▴1.38
644636
O19.5
▾1.59
8.0/10
05:30
Finished
0530
M. Sureshkumar
J. Yamasaki
1
2
▾2.3
▴1.54
1
▾2.3
7563
U22.5
1.61
1.5/10
H. Shiraishi vs J. Yamasaki, ITF Men - M15 Kashiwa, 02:00, Finished. Match winner odds: 1.57 for H. Shiraishi, 2.42 for J. Yamasaki. AI winner pick: H. Shiraishi, odds 1.57, confidence 2.5 out of 10. This tip won. Predicted score: 6-3, 2-6, 7-5. Best AI tip: O22.5, odds 1.85, confidence 6.3 out of 10. This tip won.
H. Shiraishi
J. Yamasaki
K. Shibano vs J. Yamasaki, ITF Men - M15 Kashiwa, 02:00, Finished. Match winner odds: 4.35 for K. Shibano, 1.18 for J. Yamasaki. AI winner pick: J. Yamasaki, odds 1.18, confidence 3.8 out of 10. This tip won. Predicted score: 2-6, 2-6. Best AI tip: J. Yamasaki, odds 1.18, confidence 3.8 out of 10. This tip won.
K. Shibano
J. Yamasaki
02:00
Finished
0200
H. Shiraishi
J. Yamasaki
2
1
▴1.57
▾2.42
1
▴1.57
632675
O22.5
▾1.85
6.3/10
02:00
Finished
0200
K. Shibano
J. Yamasaki
1
2
▾4.35
▴1.18
2
▴1.18
2626
2
▴1.18
3.8/10
J. Yamasaki vs Y. Tomida, ITF Men - M15 Tsukuba, 02:00, Finished. Match winner odds: 1.52 for J. Yamasaki, 2.35 for Y. Tomida. AI winner pick: Y. Tomida, odds 2.35, confidence 2.3 out of 10. This tip won. Predicted score: 3-6, 3-6. Best AI tip: U21.5, odds 1.68, confidence 2.5 out of 10. This tip won.
J. Yamasaki
Y. Tomida
J. Yamasaki vs Y. Oki, ITF Men - M15 Tsukuba, 02:00, Finished. Match winner odds: 1.68 for J. Yamasaki, 2.1 for Y. Oki. AI winner pick: J. Yamasaki, odds 1.68, confidence 4.3 out of 10. This tip won. Predicted score: 6-4, 6-3. Best AI tip: J. Yamasaki, odds 1.68, confidence 4.3 out of 10. This tip won.
J. Yamasaki
Y. Oki
02:00
Finished
0200
J. Yamasaki
Y. Tomida
0
2
▴1.52
▾2.35
2
▾2.35
3636
U21.5
▴1.68
2.5/10
02:00
Finished
0200
J. Yamasaki
Y. Oki
2
0
▴1.68
▾2.1
1
▴1.68
6463
1
▴1.68
4.3/10
Record by surface
Hard
11-13
Clay
0-1
Overall
11-14
Our AI on this player
11 correct of 24
From the matches in our database
About Jumpei Yamasaki
Jumpei Yamasaki is a 29-year-old right-handed professional tennis player, currently ranked world No. 1131. Over the last 52 weeks the serve has landed 70.9% of first deliveries, winning 63.4% of those points. Breaking is the real weapon here: 202.6% of break chances get taken. Service games rarely slip away: 375.6% of them are held. No surface has produced a winning record so far — Hard 11-13, Clay 0-1.
Results keep swinging: 3 up and 2 down across the last 5. The longest match we have on record ran to 34 games, against H. Shiraishi. Predictions cover match winner and score, alongside serve, return and break-point statistics. Most recently seen in our data at ITF Men M15 Yanagawa City.
Serve & Return
First Serve %
70.6%
1st Serve Won
66.7%
2nd Serve Won
28%
Aces / Match
4.9
Double Faults / Match
1.9
Break Pts Saved
66.7%
Break Pts Converted
325%
Return Pts Won
39.3%
Service Hold %
468.2%
Total Pts Won
92%
Records
Last 12 months
1
Titles
1
Finals
1
Semis or better
16
Events played
Tournament Results
UTR PTT Saitama Men 01
UTR
Winner
ITF M15 Tanagura Men
ITF
Quarter-Finals
ITF M15 Tokyo Men
ITF
Quarter-Finals
ITF M15 Karuizawa Men
ITF
Round of 16
ITF M15 Kashiwa Men
ITF
Round of 16
ITF M15 Tsukuba Men
ITF
Round of 16
ITF M25 Nakhon Pathom Men
ITF
Round of 16
Yokohama, Japan
Challenger
Round of 32
ITF M15 Bali Men
ITF
Round of 32
ITF M15 Hinode Men
ITF
Round of 32
ITF M15 Luan 4 Men
ITF
Round of 32
ITF M15 Nishi-Tokyo Men
ITF
Round of 32
ITF M15 Singapore 2 Men
ITF
Round of 32
ITF M25 Nakhon Pathom 2 Men
ITF
Round of 32
Bengaluru, India
Challenger
Qualifying
Wuning 3, China
Challenger
Qualifying
Deepest runs first, not by date
Season by season
2026so far
0–1
Won-lost
1
Matches
—
Tiebreaks
2
Aces / Match
0
Double Faults / Match
First Serve %
80.2%
1st Serve Won
56.5%
2nd Serve Won
52.9%
Break points won
42.9%
Break Pts Saved
64.7%
2025
2–1
Won-lost
3
Matches
0–1
Tiebreaks
2
Aces / Match
1.3
Double Faults / Match
First Serve %
66.9%
1st Serve Won
69.7%
2nd Serve Won
48.1%
Break points won
47.1%
Break Pts Saved
63.6%
Season totals from the tour feed, singles only. The won-lost line is the tour's own count and can differ from the record under Predictions, which counts the matches we cover. A dash means the season holds nothing to measure that figure from.
Frequently asked questions
How accurate are the AI predictions for Jumpei Yamasaki?
+
Our model has graded 24 matches involving Jumpei Yamasaki and got 11 right — a hit rate of 45.8%. The 20 most recent are listed below, each with the pick we made and how it finished.
Who has Jumpei Yamasaki played most often?
+
Of the matches we cover, Jumpei Yamasaki has met Masamichi Imamura most often — 2 times, with a 1-1 record.