ITF · Clay
ITF M15 Karuizawa 2026
On this page you can view ITF M15 Karuizawa analysis and predictions. Player form, head-to-head records, and surface data are taken into account, and predictions are automatically generated by AI with an accuracy of over 45.8%.
24
Predicted
0
Upcoming
45.8%
Success
Players to Watch
CS
ITF
C. Sinclair
EZ
ITF
E. Zhu
HK
ITF
H. Koyama
HS
ITF
H. Shiraishi
JD
ITF
J. Delaney
JD
ITF
J. Delaney
JY
ITF
J. Yamasaki
KM
ITF
K. Matsuda
KN
ITF
K. Nishiwaki
KO
ITF
K. Ogura
KO
ITF
K. Otsuka
KS
ITF
K. Suzuki
LV
ITF
L. Vithoontien
NK
ITF
N. Koizumi
RK
ITF
R. Kojima
RT
ITF
R. Tanuma
SF
ITF
S. Fukuda
SM
ITF
S. Matsuoka
TK
ITF
T. Karigyo
TM
ITF
T. Masabayashi
TT
ITF
T. Takamisawa
YK
ITF
Y. Kawahashi
YK
ITF
Y. Kusuhara
YT
ITF
Y. Taka
YT
ITF
Y. Tomida
ITF
C. Sinclair
EZ
ITF
E. Zhu
HK
ITF
H. Koyama
HS
ITF
H. Shiraishi
JD
ITF
J. Delaney
JD
ITF
J. Delaney
JY
ITF
J. Yamasaki
KM
ITF
K. Matsuda
KN
ITF
K. Nishiwaki
KO
ITF
K. Ogura
KO
ITF
K. Otsuka
KS
ITF
K. Suzuki
LV
ITF
L. Vithoontien
NK
ITF
N. Koizumi
RK
ITF
R. Kojima
RT
ITF
R. Tanuma
SF
ITF
S. Fukuda
SM
ITF
S. Matsuoka
TK
ITF
T. Karigyo
TM
ITF
T. Masabayashi
TT
ITF
T. Takamisawa
YK
ITF
Y. Kawahashi
YK
ITF
Y. Kusuhara
YT
ITF
Y. Taka
YT
ITF
Y. Tomida
Tournament Insights
45.8%
AI Prediction Accuracy
63%
Straight Sets Wins
38%
Deciding Set
21%
Tiebreak Matches
2.4
Avg. Sets per Match
Matches by round
Semi-Finals 2
H. Koyama vs J. Delaney, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 2.55 for H. Koyama, 1.54 for J. Delaney. AI winner pick: J. Delaney, odds 1.54, confidence 2.0 out of 10. This tip won. Predicted score: 4-6, 4-6. Best AI tip: J. Delaney, odds 1.54, confidence 2.0 out of 10. This tip won.
H. Koyama
J. Delaney
E. Zhu vs S. Fukuda, ITF Men - M15 Karuizawa, 04:07, Finished. Match winner odds: 2.52 for E. Zhu, 1.49 for S. Fukuda. AI winner pick: S. Fukuda, odds 1.49, confidence 3.0 out of 10. This tip lost. Predicted score: 6-2, 3-6, 5-7. Best AI tip: S. Fukuda, odds 1.49, confidence 3.0 out of 10. This tip lost.
E. Zhu
S. Fukuda
02:00
Finished
0200
H. Koyama
J. Delaney
0
2
▾2.55
▴1.54
2
▴1.54
4646
2
▴1.54
2.0/10
04:07
Finished
0407
E. Zhu
S. Fukuda
2
1
▴2.52
▾1.49
2
▾1.49
623657
2
▾1.49
3.0/10
Quarter-Finals 4
H. Shiraishi vs H. Koyama, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 1.45 for H. Shiraishi, 2.65 for H. Koyama. AI winner pick: H. Shiraishi, odds 1.45, confidence 2.7 out of 10. This tip lost. Predicted score: 6-2, 7-5. Best AI tip: H. Shiraishi, odds 1.45, confidence 2.7 out of 10. This tip lost.
H. Shiraishi
H. Koyama
J. Delaney vs L. Vithoontien, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 1.62 for J. Delaney, 2.28 for L. Vithoontien. AI winner pick: L. Vithoontien, odds 2.28, confidence 3.7 out of 10. This tip lost. Predicted score: 4-6, 6-4, 3-6. Best AI tip: O20.5, odds 1.78, confidence 7.8 out of 10. This tip lost.
J. Delaney
L. Vithoontien
S. Matsuoka vs E. Zhu, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 2.34 for S. Matsuoka, 1.57 for E. Zhu. AI winner pick: E. Zhu, odds 1.57, confidence 2.0 out of 10. This tip won. Predicted score: 6-3, 3-6, 4-6. Best AI tip: O20.5, odds 1.78, confidence 7.2 out of 10. This tip lost.
S. Matsuoka
E. Zhu
S. Fukuda vs K. Matsuda, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 1.78 for S. Fukuda, 1.95 for K. Matsuda. AI winner pick: S. Fukuda, odds 1.78, confidence 3.2 out of 10. This tip won. Predicted score: 6-2, 5-7, 6-3. Best AI tip: S. Fukuda, odds 1.78, confidence 3.2 out of 10. This tip won.
S. Fukuda
K. Matsuda
02:00
Finished
0200
H. Shiraishi
H. Koyama
1
2
▴1.45
▾2.65
1
▴1.45
6275
1
▴1.45
2.7/10
02:00
Finished
0200
J. Delaney
L. Vithoontien
2
0
▴1.62
▾2.28
2
▾2.28
466436
O20.5
▾1.78
7.8/10
02:00
Finished
0200
S. Matsuoka
E. Zhu
0
2
▴2.34
▾1.57
2
▾1.57
633646
O20.5
▾1.78
7.2/10
02:00
Finished
0200
S. Fukuda
K. Matsuda
2
0
▾1.78
▴1.95
1
▾1.78
625763
1
▾1.78
3.2/10
Round of 16 8
H. Shiraishi vs T. Masabayashi, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 1.29 for H. Shiraishi, 3.3 for T. Masabayashi. AI winner pick: H. Shiraishi, odds 1.29, confidence 2.9 out of 10. This tip won. Predicted score: 6-3, 6-4. Best AI tip: H. Shiraishi, odds 1.29, confidence 2.9 out of 10. This tip won.
H. Shiraishi
T. Masabayashi
K. Otsuka vs K. Matsuda, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 8.2 for K. Otsuka, 1.07 for K. Matsuda. AI winner pick: K. Otsuka, odds 8.2, confidence 1.5 out of 10. This tip lost. Predicted score: 5-7, 6-2, 6-2. Best AI tip: O17.5, odds 1.9, confidence 7.8 out of 10. This tip won.
K. Otsuka
K. Matsuda
S. Fukuda vs Y. Tomida, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 1.34 for S. Fukuda, 3.2 for Y. Tomida. AI winner pick: S. Fukuda, odds 1.34, confidence 3.3 out of 10. This tip won. Predicted score: 6-2, 7-5. Best AI tip: S. Fukuda, odds 1.34, confidence 3.3 out of 10. This tip won.
S. Fukuda
Y. Tomida
Y. Taka vs E. Zhu, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 3.7 for Y. Taka, 1.25 for E. Zhu. AI winner pick: E. Zhu, odds 1.25, confidence 4.6 out of 10. This tip won. Predicted score: 3-6, 6-3, 5-7. Best AI tip: E. Zhu, odds 1.25, confidence 4.6 out of 10. This tip won.
Y. Taka
E. Zhu
Y. Kusuhara vs S. Matsuoka, ITF Men - M15 Karuizawa, 04:08, Finished. Match winner odds: 2.01 for Y. Kusuhara, 1.74 for S. Matsuoka. AI winner pick: Y. Kusuhara, odds 2.01, confidence 2.3 out of 10. This tip lost. Predicted score: 1-6, 6-3, 7-6. Best AI tip: O21.5, odds 1.85, confidence 3.9 out of 10. This tip lost.
Y. Kusuhara
S. Matsuoka
J. Yamasaki vs L. Vithoontien, ITF Men - M15 Karuizawa, 04:08, Finished. Match winner odds: 1.62 for J. Yamasaki, 2.25 for L. Vithoontien. AI winner pick: L. Vithoontien, odds 2.25, confidence 3.3 out of 10. This tip won. Predicted score: 6-7, 6-3, 1-6. Best AI tip: O20.5, odds 1.8, confidence 6.7 out of 10. This tip lost.
J. Yamasaki
L. Vithoontien
J. Delaney vs K. Nishiwaki, ITF Men - M15 Karuizawa, 04:09, Finished. Match winner odds: 1.28 for J. Delaney, 3.85 for K. Nishiwaki. AI winner pick: J. Delaney, odds 1.28, confidence 1.7 out of 10. This tip won. Predicted score: 6-4, 4-6, 6-3. Best AI tip: O19.5, odds 1.8, confidence 8.4 out of 10. This tip lost.
J. Delaney
K. Nishiwaki
H. Koyama vs N. Koizumi, ITF Men - M15 Karuizawa, 04:09, Finished. Match winner odds: 2.4 for H. Koyama, 1.54 for N. Koizumi. AI winner pick: N. Koizumi, odds 1.54, confidence 4.8 out of 10. This tip lost. Predicted score: 4-6, 4-6. Best AI tip: N. Koizumi, odds 1.54, confidence 4.8 out of 10. This tip lost.
H. Koyama
N. Koizumi
02:00
Finished
0200
H. Shiraishi
T. Masabayashi
2
0
▴1.29
▾3.3
1
▴1.29
6364
1
▴1.29
2.9/10
02:00
Finished
0200
K. Otsuka
K. Matsuda
0
2
▴8.2
▾1.07
1
▴8.2
576262
O17.5
▴1.9
7.8/10
02:00
Finished
0200
S. Fukuda
Y. Tomida
2
1
▾1.34
▴3.2
1
▾1.34
6275
1
▾1.34
3.3/10
02:00
Finished
0200
Y. Taka
E. Zhu
0
2
▴3.7
▾1.25
2
▾1.25
366357
2
▾1.25
4.6/10
04:08
Finished
0408
Y. Kusuhara
S. Matsuoka
0
2
2.01
1.74
1
2.01
166376
O21.5
▴1.85
3.9/10
04:08
Finished
0408
J. Yamasaki
L. Vithoontien
0
2
▴1.62
▾2.25
2
▾2.25
676316
O20.5
▾1.8
6.7/10
04:09
Finished
0409
J. Delaney
K. Nishiwaki
2
0
▾1.28
▴3.85
1
▾1.28
644663
O19.5
▾1.8
8.4/10
04:09
Finished
0409
H. Koyama
N. Koizumi
2
0
2.4
1.54
2
1.54
4646
2
1.54
4.8/10
3rd Round 9
27 May 2026
H. Shiraishi vs K. Ogura, ITF Men - M15 Karuizawa, 02:00, Finished. Match winner odds: 1.66 for H. Shiraishi, 2.12 for K. Ogura. AI winner pick: H. Shiraishi, odds 1.66, confidence 2.9 out of 10. This tip won. Predicted score: 7-5, 6-3. Best AI tip: H. Shiraishi, odds 1.66, confidence 2.9 out of 10. This tip won. 02:00
Finished
0200
H. Shiraishi
K. Ogura
2
1
▴1.66
▾2.12
1
▴1.66
7563
1
▴1.66
2.9/10
02:00
Finished
0200
K. Suzuki
K. Matsuda
0
2
▴5
▾1.18
2
▾1.18
3636
2
▾1.18
5.1/10
02:00
Finished
0200
R. Tanuma
H. Koyama
1
2
▴1.66
▾2.18
1
▴1.66
6364
1
▴1.66
2.0/10
02:00
Finished
0200
Y. Taka
T. Karigyo
2
0
▾1.46
▴2.58
2
▴2.58
2646
U20.5
▴1.8
3.4/10
04:10
Finished
0410
N. Koizumi
Y. Kawahashi
2
1
2.43
1.54
1
2.43
6363
U20.5
▴1.85
3.5/10
04:10
Finished
0410
K. Nishiwaki
T. Takamisawa
2
1
2.12
1.67
2
1.67
266257
O21.5
▾1.87
6.3/10
26 May 2026
J. Delaney vs L. Vithoontien, ITF Men - M15 Karuizawa, 04:05, Finished. Match winner odds: 5.4 for J. Delaney, 1.13 for L. Vithoontien. AI winner pick: L. Vithoontien, odds 1.13, confidence 4.2 out of 10. This tip won. Predicted score: 6-7, 6-3, 1-6. Best AI tip: L. Vithoontien, odds 1.13, confidence 4.2 out of 10. This tip won. 04:05
Finished
0405
J. Delaney
L. Vithoontien
0
2
▴5.4
▾1.13
2
▾1.13
676316
2
▾1.13
4.2/10
04:07
Finished
0407
J. Delaney
R. Kojima
2
0
1.01
11
2
11
752636
2
11
4.5/10
04:11
Finished
0411
E. Zhu
C. Sinclair
2
1
▾2.65
▴1.44
2
▴1.44
4636
2
▴1.44
5.7/10
Title Contenders
1AUJ. Delaney7%
2JPH. Shiraishi7%
3JPK. Matsuda7%
4MPC. Sinclair7%
5JPY. Kawahashi5%
6JPL. Vithoontien5%
Clay
The model weights clay-specific form for every tie at this event.
25
Main draw
Best of 3
Format
How ITF M15 Karuizawa 2026 played out
This was a compact field: 25 players from 4 countries. E. Zhu came through a deciding set in the final to take the title from J. Delaney. The widest gap anyone closed was H. Koyama's: ranked 1364 at the time, they knocked out world No. 470 H. Shiraishi.
The longest match of the event ran to 35 games, E. Zhu against C. Sinclair. Upsets were common here — 4 of the 20 matches between two ranked players went to the outsider.
Across 24 decided matches at this event, the best tip has landed 45% of the time. The model weights clay-specific form for every tie at this event.
Frequently asked questions
What surface is ITF M15 Karuizawa played on?
+
ITF M15 Karuizawa is played on Clay. Surface type significantly affects match dynamics — our AI factors in each player's surface-specific performance when generating predictions.
How accurate are AI predictions for ITF M15 Karuizawa?
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Our AI has achieved an overall accuracy of 45.8% on best-tip predictions for ITF M15 Karuizawa, based on 24 decided matches. The figure is updated as new matches are graded.
How many matches have been analyzed at ITF M15 Karuizawa?
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Our AI has analyzed a total of 24 matches at ITF M15 Karuizawa. For each match, we provide predictions on winner, score, aces, break points, total games, and other detailed statistics.
When is ITF M15 Karuizawa played?
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Based on our data, ITF M15 Karuizawa matches were played from 26 May 2026 to 31 May 2026. Tournament dates may vary slightly each year — check back for updated predictions as the draw is announced.
18+ · Predictions are AI-generated for informational use · We never place bets on your behalf