Honori Koyama vs Jeong MoonPrediction, Head-to-Head Results, and Stats
Honori Koyama and Jeong Moon have met 1 time since 2026; Honori Koyama leads 1–0. Across all meetings Koyama has taken 2 sets to Moon's 0. Their most recent meeting: Honori Koyama won at W15 Toyama (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Koyama | Moon | ||
|---|---|---|---|---|
| Indicator | Honori Koyama | Jeong Moon | ||
| Wins in straight sets | 100% | 6/6 | 55% | 6/11 |
| Wins a set when losing | 33% | 3/9 | 33% | 4/12 |
| Goes to a deciding set | 20% | 3/15 | 39% | 9/23 |
| Covers −1.5 sets as favorite | 100% | 4/4 | 13% | 1/8 |
| Covers +1.5 sets as underdog | 50% | 3/6 | 50% | 5/10 |
| Tiebreak sets won | 0% | 0/2 | 50% | 1/2 |
| Wins after taking set 1 | 75% | 6/8 | 82% | 9/11 |
| Wins 2-0 after taking set 1 | 75% | 6/8 | 55% | 6/11 |
Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 1 of 1 completed meetings ended in straight sets (Koyama 1, Moon 0).
Style Matchup
Playing styles and historical archetype record
Koyama
🛡️ The Spoiler
Moon
🛡️ The Spoiler
Matchup analysis
Both Honori Koyama and Jeong Moon are 🛡️ The Spoiler types. Mirror matchups usually come down to execution, fitness, and surface fit, across 590 matches in our dataset the historical split is about even.
Previous meetings
1 career meeting, newest first
May 14, 2026
W15 Toyama
H Hard · 2nd Round
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Koyama | Moon |
|---|---|---|
| W-L | - | 1–0 |
| Avg odds | - | 1.14 |
| ROI % | - | +14.0% |
| Units P/L | - | +0.14u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Recent Form
Last five matches per player
Aoi Watanabe
Sapporo 2 ITF
Jun 22
Aoi Watanabe
Sapporo ITF
Jun 15
Cheuk Ying Shek
W15 Fukui · 1st Round
May 27
Himari Sato
W15 Toyama · 1st Round
May 19
Cheuk Ying Shek
W15 Toyama · Quarterfinals
May 15
Jeong Moon
W15 Toyama · 2nd Round
May 14
Koharu Niimi
W15 Toyama · 1st Round
May 13
Boyoung Jeong
W15 Maanshan 1 · 2nd Round
Mar 5
Shiho Shibata
Maanshan 6 ITF
Jun 30
Minxu Zhou
Maanshan 6 ITF
Jun 29
Eva Marie Desvignes
W15 Maanshan · 1st Round
Jun 24
Rinko Matsuda
W15 Toyama · 1st Round
May 20
Honori Koyama
W15 Toyama · 2nd Round
May 14
Nana Kawagishi
W15 Toyama · 1st Round
May 13
Valentina Ryser
W35 Fukuoka · 1st Round
May 5
Alicia Smith
W15 Swan Hill 1 · 2nd Round
Mar 26
Win rate
Matches, sets and games won · Last 12 months · 15–23 matches
| Metric | Koyama | Moon |
|---|---|---|
| Matches won | 40% | 48% |
| Sets won | 45% | 47% |
| Games won | 48% | 47% |
Record by tier
Head-to-head record by tournament tier
| Stage | Koyama | Moon |
|---|---|---|
| ITF W15 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Koyama | Moon |
|---|---|---|
| Hard | 1 | 0 |
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