Data period: 2023–2025 (JRA) / Target jockeys: 2026 active riders only / Win ROI = theoretical return per ¥100 bet on all starters
Trainer Miyata Keisuke Complete Betting Guide【2023–2025 JRA Data Analysis】
3-year combined win ROI: 70.1%. Turf 64% / Dirt 36% split. 2026 active jockeys: 丸山元気 Yuji Tannai Keita Tosaki Takuya Kobata 杉原誠人 Akihide Tsumura 荻野極 野中悠太.
※ Signal ratings apply only to jockeys with 2026 riding records at this stable.
🚦 Distance-Based Betting Signals
◎Top Pick: ROI 100%+○Strong: ROI 80%+ & WinRate 8%+▲Watch: ROI 60%+ & WinRate 6%+×Avoid
Turf~1400m56 starts / ◎1 ○0
Win%: 10.7%Place%: 26.8%Show%: 39.3%ROI: 31.1%
💡 Keita Tosaki stand out with ROI of 119.0%. Primary win bet candidates.ROI is on a slight downward trend. Overall show rate 39.3% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Keita Tosaki | 10 | 40.0% | 60.0% | 70.0% | 119.0% |
| × | 丸山元気 | 8 | 0.0% | 25.0% | 37.5% | 0.0% |
Turf1401~1800m198 starts / ◎0 ○2
Win%: 16.2%Place%: 28.8%Show%: 38.9%ROI: 71.9%
💡 野中悠太・杉原誠人 also show solid stats for win or place bets.ROI is on an upward trend. Overall show rate 38.9% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ○ | 野中悠太 | 8 | 12.5% | 12.5% | 25.0% | 92.5% |
| ○ | 杉原誠人 | 7 | 14.3% | 28.6% | 28.6% | 82.9% |
| ▲ | Keita Tosaki | 28 | 14.3% | 25.0% | 42.9% | 70.0% |
| × | 丸山元気 | 14 | 7.1% | 14.3% | 14.3% | 59.3% |
Turf1801~2200m118 starts / ◎0 ○1
Win%: 13.6%Place%: 23.7%Show%: 30.5%ROI: 56.6%
💡 Keita Tosaki also show solid stats for win or place bets.ROI is on a slight downward trend. Overall show rate 30.5% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ○ | Keita Tosaki | 14 | 28.6% | 35.7% | 42.9% | 95.0% |
| × | Akihide Tsumura | 6 | 16.7% | 66.7% | 66.7% | 53.3% |
| × | 丸山元気 | 8 | 0.0% | 0.0% | 12.5% | 0.0% |
| × | 野中悠太 | 7 | 0.0% | 0.0% | 14.3% | 0.0% |
Turf2201m+50 starts / ◎1 ○0
Win%: 24.0%Place%: 34.0%Show%: 38.0%ROI: 148.4%
💡 Yuji Tannai stand out with ROI of 416.7%. Primary win bet candidates.ROI is on a slight downward trend. Overall show rate 38.0% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Yuji Tannai | 9 | 22.2% | 33.3% | 44.4% | 416.7% |
Dirt~1400m58 starts / ◎0 ○0
Win%: 6.9%Place%: 17.2%Show%: 19.0%ROI: 30.7%
💡 Overall ROI 30.7%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| × | 丸山元気 | 7 | 0.0% | 0.0% | 0.0% | 0.0% |
Dirt1401~1800m158 starts / ◎0 ○1
Win%: 9.5%Place%: 19.0%Show%: 29.7%ROI: 31.5%
💡 丸山元気 also show solid stats for win or place bets.ROI is on an upward trend. Overall show rate 29.7% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ○ | 丸山元気 | 15 | 13.3% | 20.0% | 26.7% | 80.0% |
| × | Yuji Tannai | 6 | 16.7% | 16.7% | 16.7% | 43.3% |
| × | 野中悠太 | 12 | 8.3% | 8.3% | 16.7% | 19.2% |
| × | 杉原誠人 | 13 | 0.0% | 7.7% | 15.4% | 0.0% |
※ Jockeys with fewer than 5 starts excluded. Target jockeys limited to 2026 active riders.
⚡ Trainer Betting Strategy
Actionable betting scenarios based on 2026 active jockey data.
🔴 Scenario A【Top Priority】 Turf 2201m+
◎ Jockeys: Yuji Tannai (416.7%)
Overall ROI 148.4% / Show rate 38.0%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
🟡 Scenario B【Secondary】 Turf ~1400m
◎ Jockeys: Keita Tosaki (119.0%)
Overall ROI 31.1% / Show rate 39.3%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
⚫ Conditions to Avoid
- Dirt ~1400m (overall ROI 30.7%): No ◎/○ jockeys. Place/Wide only.
📋 Jockey Substitution Checklist
| Jockey | Best Condition | Best ROI | Overall ROI | Recommended Bet |
|---|---|---|---|---|
| Yuji Tannai | Turf 1801~2200m | 625.0% | 260.4% | Win◎ |
| 杉原誠人 | Turf 1801~2200m | 160.0% | 300.0% | Win◎ |
| Keita Tosaki | Turf ~1400m | 119.0% | 81.9% | Win+Place |
| 野中悠太 | Turf 1401~1800m | 92.5% | 27.7% | Place only |
| 丸山元気 | Dirt 1401~1800m | 80.0% | 39.0% | Place only |
| Akihide Tsumura | Turf ~1400m | 77.5% | 39.4% | Place only |
| 荻野極 | 0% | 0.0% | Place only | |
| Takuya Kobata | 0% | 0.0% | Place only |
📊 Data Details (Supporting Evidence)
Detailed stats supporting the signal ratings above.
Overall Performance by Year
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 213 | 13.1% | 22.1% | 27.7% | 65.0% |
| 2024 | 206 | 14.1% | 23.8% | 32.5% | 94.5% |
| 2025 | 239 | 12.6% | 26.4% | 37.2% | 53.7% |
| Total | 658 | 13.2% | 24.2% | 32.7% | 70.1% |
Turf Performance by Year × Distance
Turf Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 15 | 20.0% | 26.7% | 26.7% | 53.3% |
| 2024 | 14 | 14.3% | 28.6% | 35.7% | 45.0% |
| 2025 | 27 | 3.7% | 25.9% | 48.1% | 11.5% |
Turf Mile (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 67 | 9.0% | 22.4% | 29.9% | 30.7% |
| 2024 | 56 | 21.4% | 30.4% | 39.3% | 82.9% |
| 2025 | 75 | 18.7% | 33.3% | 46.7% | 100.4% |
Turf Middle (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 41 | 17.1% | 22.0% | 26.8% | 71.2% |
| 2024 | 41 | 9.8% | 22.0% | 29.3% | 59.8% |
| 2025 | 36 | 13.9% | 27.8% | 36.1% | 36.4% |
Turf Long (2201m+)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 17 | 35.3% | 47.1% | 47.1% | 288.8% |
| 2024 | 16 | 18.8% | 31.2% | 43.8% | 83.8% |
| 2025 | 17 | 17.6% | 23.5% | 23.5% | 68.8% |
Dirt Performance by Year × Distance
Dirt Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 27 | 11.1% | 22.2% | 22.2% | 60.0% |
| 2024 | 10 | 10.0% | 20.0% | 30.0% | 16.0% |
| 2025 | 21 | 0.0% | 9.5% | 9.5% | 0.0% |
Dirt Middle (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 36 | 5.6% | 11.1% | 25.0% | 29.2% |
| 2024 | 60 | 10.0% | 18.3% | 26.7% | 23.5% |
| 2025 | 62 | 11.3% | 24.2% | 35.5% | 40.6% |
Dirt Long (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 7 | 14.3% | 14.3% | 14.3% | 68.6% |
| 2024 | 8 | 12.5% | 12.5% | 25.0% | 1105.0% |
| 2025 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
Jockey Stats (3-Year Combined / 2026 Active Only)
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Keita Tosaki | 67 | 23.9% | 34.3% | 44.8% | 81.9% |
| 丸山元気 | 52 | 5.8% | 13.5% | 19.2% | 39.0% |
| 野中悠太 | 35 | 5.7% | 8.6% | 20.0% | 27.7% |
| 杉原誠人 | 33 | 9.1% | 15.2% | 18.2% | 300.0% |
| Yuji Tannai | 25 | 20.0% | 28.0% | 32.0% | 260.4% |
| Akihide Tsumura | 16 | 12.5% | 31.2% | 43.8% | 39.4% |
| 荻野極 | 12 | 0.0% | 8.3% | 25.0% | 0.0% |
| Takuya Kobata | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
Key Jockey Breakdown: Turf × Dirt × Year
▶ Keita Tosaki
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 21 | 28.6% | 28.6% | 33.3% | 90.5% | 6 | 16.7% | 33.3% | 33.3% | 80.0% |
| 2024 | 18 | 33.3% | 44.4% | 61.1% | 125.0% | 2 | 50.0% | 50.0% | 50.0% | 70.0% |
| 2025 | 17 | 11.8% | 35.3% | 52.9% | 42.4% | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 56 | 25.0% | 35.7% | 48.2% | 87.0% | 11 | 18.2% | 27.3% | 27.3% | 56.4% |
▶ 丸山元気
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 12 | 0.0% | 8.3% | 8.3% | 0.0% | 7 | 14.3% | 14.3% | 14.3% | 85.7% |
| 2024 | 5 | 0.0% | 0.0% | 0.0% | 0.0% | 3 | 0.0% | 0.0% | 33.3% | 0.0% |
| 2025 | 13 | 7.7% | 23.1% | 38.5% | 63.8% | 12 | 8.3% | 16.7% | 16.7% | 50.0% |
| Total | 30 | 3.3% | 13.3% | 20.0% | 27.7% | 22 | 9.1% | 13.6% | 18.2% | 54.5% |
▶ 野中悠太
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 1 | 0.0% | 0.0% | 0.0% | 0.0% | 4 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 10 | 10.0% | 10.0% | 20.0% | 74.0% | 11 | 9.1% | 18.2% | 36.4% | 20.9% |
| 2025 | 6 | 0.0% | 0.0% | 16.7% | 0.0% | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 17 | 5.9% | 5.9% | 17.6% | 43.5% | 18 | 5.6% | 11.1% | 22.2% | 12.8% |
▶ 杉原誠人
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 3 | 0.0% | 0.0% | 0.0% | 0.0% | 9 | 0.0% | 11.1% | 11.1% | 0.0% |
| 2024 | 5 | 20.0% | 40.0% | 40.0% | 116.0% | 6 | 16.7% | 16.7% | 16.7% | 1473.3% |
| 2025 | 5 | 20.0% | 20.0% | 20.0% | 96.0% | 5 | 0.0% | 0.0% | 20.0% | 0.0% |
| Total | 13 | 15.4% | 23.1% | 23.1% | 81.5% | 20 | 5.0% | 10.0% | 15.0% | 442.0% |
▶ Yuji Tannai
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 4 | 50.0% | 75.0% | 75.0% | 1170.0% | — | ||||
| 2024 | 10 | 20.0% | 30.0% | 40.0% | 157.0% | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 4 | 0.0% | 0.0% | 0.0% | 0.0% | 4 | 25.0% | 25.0% | 25.0% | 65.0% |
| Total | 18 | 22.2% | 33.3% | 38.9% | 347.2% | 7 | 14.3% | 14.3% | 14.3% | 37.1% |
▶ Akihide Tsumura
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 2 | 0.0% | 0.0% | 0.0% | 0.0% | — | ||||
| 2024 | 3 | 0.0% | 33.3% | 66.7% | 0.0% | — | ||||
| 2025 | 9 | 22.2% | 44.4% | 44.4% | 70.0% | 2 | 0.0% | 0.0% | 50.0% | 0.0% |
| Total | 14 | 14.3% | 35.7% | 42.9% | 45.0% | 2 | 0.0% | 0.0% | 50.0% | 0.0% |
▶ 荻野極
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 3 | 0.0% | 0.0% | 0.0% | 0.0% | — | ||||
| 2024 | 1 | 0.0% | 0.0% | 0.0% | 0.0% | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 4 | 0.0% | 25.0% | 50.0% | 0.0% | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Total | 8 | 0.0% | 12.5% | 25.0% | 0.0% | 4 | 0.0% | 0.0% | 25.0% | 0.0% |
▶ Takuya Kobata
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | — | — | ||||||||
| 2024 | — | 1 | 0.0% | 0.0% | 0.0% | 0.0% | ||||
| 2025 | — | 1 | 0.0% | 0.0% | 0.0% | 0.0% | ||||
| Total | — | 2 | 0.0% | 0.0% | 0.0% | 0.0% | ||||
Grade Race Performance (G1 / G2 / G3)
G1
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 1 | 100.0% | 100.0% | 100.0% | 240.0% |
| 2024 | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 6 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 9 | 11.1% | 11.1% | 11.1% | 26.7% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Keita Tosaki | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| 杉原誠人 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
G2
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 4 | 0.0% | 25.0% | 25.0% | 0.0% |
| 2024 | 5 | 20.0% | 20.0% | 20.0% | 72.0% |
| 2025 | 4 | 0.0% | 50.0% | 75.0% | 0.0% |
| Total | 13 | 7.7% | 30.8% | 38.5% | 27.7% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Keita Tosaki | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| 丸山元気 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| Yuji Tannai | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
G3
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 6 | 16.7% | 16.7% | 16.7% | 135.0% |
| 2024 | 8 | 12.5% | 25.0% | 25.0% | 72.5% |
| 2025 | 12 | 8.3% | 25.0% | 33.3% | 31.7% |
| Total | 26 | 11.5% | 23.1% | 26.9% | 68.1% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 杉原誠人 | 4 | 25.0% | 50.0% | 50.0% | 145.0% |
| Keita Tosaki | 3 | 33.3% | 66.7% | 66.7% | 270.0% |
| Akihide Tsumura | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| 荻野極 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
※ Extreme ROI values may reflect small samples with high-dividend races. Treat data with fewer than 10 starts as reference only.
※ This data is for reference purposes only and does not constitute investment advice.