Daisuke Sumizawa vs Hiromasa Koyama Head-to-Head Stats, Results & Performance Comparison
Wojtek Kolan
Published on 01 Apr at 07:33 AM UTC
HEAD TO HEAD
D. Sumizawa vs H. Koyama

JPN
1
Win
Played
0
Win

JPN
1
Win
Played
0
Win
Head-to-head: Sumizawa 1 - 0 Koyama
They have played 3 sets in total, with Daisuke Sumizawa winning 2 and Hiromasa Koyama winning 1. The last match between Daisuke Sumizawa and Hiromasa Koyama was at the M15 Kashiwa, 01-04-2025, Round: R1, Surface: Hard, with Daisuke Sumizawa getting the victory 6-2 4-6 6-1.
| Players | Head To Head Match Wins |
|---|---|
| Sumizawa | 1 |
| Koyama | 0 |
Last 1 H2H Matches:
(R1) M15 Kashiwa(04-01-25)
D. Sumizawa vs H. Koyama H2H Profile
| Stats | ||
|---|---|---|
| $0 | Career Prize Money | $0 |
| 52.55% (216-195) | Career Total W/L | 32.00% (8-17) |
| 1 | Hard | 0 |
| 1 | Titles | 0 |
| 1 | Total H2H Matches | 0 |
| 0% (0-0) | YTD Win/Loss | 0% (0-0) |
D. Sumizawa vs H. Koyama Match Preview:
Are second serves the silent game changers? When inspecting Sumizawa and Koyama's recent forms, the figures reveal intriguing nuances. Sumizawa has captured 39.61% of points from their second serve over the past six months. In contrast, Koyama trails slightly behind, winning 32.99% of second serve points. Understanding this stat is crucial, as it often correlates closely with successful match predictions.
What about their prowess on the return? The return game stats present a fascinating competitive edge, especially when dissecting second serve returns. Sumizawa has secured 43.89% of their opponent's second serve points in recent matches; however, Koyama excels with a notable 52.78% capture rate. The difference, while slight, could prove pivotal. When analyzing first serve returns, Sumizawa has a slight edge, winning 30.03%, edging out Koyama’s 29.47%. These nuances aid in predicting the likely victor in head-to-head confrontations.
In high-pressure situations, who holds their nerve better? Koyama's ability to save 51.35% of breakpoints recently suggests a robust under-pressure game, outpacing Sumizawa's 46.72% save rate. Live betting aficionados may find this statistic particularly insightful, as it provides a glimpse into the players' mental tenacity during pivotal moments.
Stepping back for an annual overview, Sumizawa has demonstrated a more consistent form over the last year, securing victory in 54.9% of matches played, translating to a win-loss record of 28/23. In contrast, Koyama has experienced a tougher season, with a mere 12.5% match win rate, managing only a 1/7 win-loss tally. Could the event level determine a player’s form? Both players mainly compete in Futures/Satellites/ITF tournaments at the $10K level, yet their performances diverge, potentially influenced by the rank of their opponents. Sumizawa has encountered players averaging a rank of 9.61, whereas Koyama’s opponents average at 391.63, presenting an important factor in formulating predictions.
When a match heads toward a deciding set, does history give us hints on who might prevail? Sumizawa has clinched 45% of deciding sets over the past year, displaying resilience, while Koyama has yet to secure victory in any deciding sets played. Delving into their best surfaces, Sumizawa excels on indoor hard courts with a 70% win rate (7/3), whereas Koyama’s most favorable surface appears to be hard courts, with a 25% win rate (2/6).
Finally, converting break points can be the final dagger or salvation. Recently, Koyama has proven adept, converting 55.56% of break points, surpassing Sumizawa's 28.17%. This sharpness could turn the tide in tightly contested games. Considering the comprehensive statistics, Sumizawa emerges as the more likely victor, showcasing superior form and adaptability on various surfaces. However, Koyama's proficiency in break point conversion and return prowess should not be underestimated, setting the stage for an enthralling encounter.
Daisuke Sumizawa vs Hiromasa Koyama Editorial Preview By TennisTipster88.
D. Sumizawa vs H. Koyama H2H Stats Used In Our Predictions
| Stats | ||
|---|---|---|
| 1 | H2H Matches Won | 0 |
| 2 | Sets Won | 1 |
| 16 | Games Won | 9 |
| 4 | Aces (Total) | 1 |
| 0 | Total Double Faults | 3 |
| 1:30:17 | Average Match Time | 1:30:17 |
| 76% (42/55) | 1st Serve % | 69% (44/64) |
| 79% (33/42) | 1st Serve Win % | 64% (28/44) |
| 38% (5/13) | 2nd Serve Win % | 45% (9/20) |
| 20% (2/10) | Break Pts Won % | 25% (1/4) |
| 42% (27/64) | Return Points Win % | 31% (17/55) |
| 100% (1/1) | Best‑of‑3 Win % | 0% (0/1) |
| 100% (1/1) | Deciding Set Win % | 0% (0/1) |
| 100% (1/1) | 1st Set Won, Won Match | 0% (0/0) |
| 0% (0/1) | 1st Set Won, Lost Match | 0% (0/0) |
| 0% (0/0) | 1st Set Lost, Won Match | 0% (0/1) |
Recent Performance Stats
D. Sumizawa Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
Q1 | L | 6-3 6-0 | ||
Q1 | L | 6-4 4-6 6-1 | ||
Q1 | L | 6-4 6-3 | ||
R2 | L | 6-1 6-3 | ||
R1 | W | 6-2 6-2 | ||
H. Koyama Recent Matches Played
| OPPONENT | RESULT | SCORE | H2H | |
|---|---|---|---|---|
R1 | L | 3-6 7-5 6-1 | ||
Q3 | W | 6-2 6-1 | ||
Q2 | W | 6-1 6-0 | ||
Q3 | L | 3-6 6-4 10-8 | ||
Q1 | W | 6-2 6-1 | ||

D. Sumizawa vs H. Koyama Stats Breakdown Vs All H2H Opponents
| Stats | ||
|---|---|---|
| 52.55% (216/195) | YTD Win/Loss | 32.00% (8/17) |
| 52.26% (486/444) | Sets Win/Loss | 39.66% (23/35) |
| 51.30% (4371/4150) | Games Win/Loss | 46.86% (246/279) |
| 54.64% (159/132) | Hard Win/Loss | 35.00% (7/13) |
| 45.74% (43/51) | Clay Win/Loss | 0% (0/0) |
| 58.33% (14/10) | Indoor Hard W/L | 20.00% (1/4) |
| 0.00% (0/2) | Grass Win/Loss | 0% (0/0) |
| 0.16 | Aces Per Game | 0.1 |
| 669 | Aces Total | 25 |
| 0.16 | Double Faults Per Game | 0.17 |
| 681 | Total Double Faults | 42 |
| 1:1:49 | Average Match Time | 1:27:32 |
| 401.89 | Average Opponent Rank | 66.44 |
| 58% (9144/15894) | 1st Serve % | 60% (808/1352) |
| 67% (6147/9144) | 1st Serve Win % | 60% (485/808) |
| 48% (3206/6749) | 2nd Serve Win % | 44% (241/544) |
| 44% (658/1486) | Break Points Won % (Total) | 47% (53/113) |
| 39% (6167/15641) | Return Points Win % | 39% (467/1197) |
| 21.43% (3/11) | Challenger W/L | 0% (0/0) |
| 53.65% (213/184) | Futures W/L | 32.00% (8/17) |
| 52% (211/404) | Best of 3 Sets Win % | 32% (8/25) |
| 100% (2/2) | Best of 5 Sets Win % | 0% (0/0) |
| 45% (40/88) | Tiebreaks Win % (Total) | 50% (2/4) |
| 49% (54/111) | Deciding Set Win % | 13% (1/8) |
| 85% (215/183) | 1st Set Won, Won Match | 58% (12/7) |
| 14% (215/31) | 1st Set Won, Lost Match | 42% (12/5) |
| 17% (196/33) | 1st Set Lost, Won Match | 8% (13/1) |
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