Data period: 2023–2025 (JRA) / Target jockeys: 2026 active riders only / Win ROI = theoretical return per ¥100 bet on all starters
Trainer Takei Ryo Complete Betting Guide【2023–2025 JRA Data Analysis】
3-year combined win ROI: 86.4%. Turf 53% / Dirt 47% split. 2026 active jockeys: Christophe Lemaire Kosei Miura 丸山元気 Yuji Tannai Seina Imamura Hayato Yoshida Ryusei Sakai Takuya Ono Yasunari Iwata 田口貫太 石神深道.
※ 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~1400m122 starts / ◎0 ○0
Win%: 6.6%Place%: 16.4%Show%: 26.2%ROI: 21.5%
💡 Overall ROI 21.5%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| × | Kosei Miura | 13 | 15.4% | 38.5% | 53.8% | 46.2% |
| × | Seina Imamura | 7 | 14.3% | 14.3% | 14.3% | 40.0% |
| × | 石神深道 | 12 | 0.0% | 0.0% | 0.0% | 0.0% |
Turf1401~1800m146 starts / ◎0 ○0
Win%: 6.8%Place%: 17.8%Show%: 30.1%ROI: 53.8%
💡 Overall ROI 53.8%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| × | Christophe Lemaire | 9 | 22.2% | 55.6% | 100.0% | 38.9% |
| × | Kosei Miura | 18 | 0.0% | 11.1% | 22.2% | 0.0% |
| × | Seina Imamura | 10 | 0.0% | 50.0% | 50.0% | 0.0% |
| × | Yasunari Iwata | 8 | 0.0% | 0.0% | 0.0% | 0.0% |
Turf1801~2200m135 starts / ◎1 ○0
Win%: 9.6%Place%: 18.5%Show%: 22.2%ROI: 49.0%
💡 Christophe Lemaire stand out with ROI of 170.0%. Primary win bet candidates.ROI is on a slight downward trend. Overall show rate 22.2% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Christophe Lemaire | 5 | 60.0% | 60.0% | 60.0% | 170.0% |
| × | Kosei Miura | 12 | 8.3% | 8.3% | 16.7% | 47.5% |
| × | 石神深道 | 14 | 0.0% | 7.1% | 7.1% | 0.0% |
| × | Yuji Tannai | 5 | 0.0% | 20.0% | 40.0% | 0.0% |
Turf2201m+52 starts / ◎0 ○0
Win%: 11.5%Place%: 19.2%Show%: 26.9%ROI: 177.9%
💡 Overall ROI 177.9%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| No data for 2026 active jockeys | ||||||
Dirt~1400m134 starts / ◎2 ○0
Win%: 11.9%Place%: 23.1%Show%: 29.9%ROI: 78.9%
💡 Yasunari Iwata・Kosei Miura stand out with ROI of 420.0%・107.8%. Primary win bet candidates.ROI is on an upward trend. Overall show rate 29.9% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Yasunari Iwata | 11 | 18.2% | 18.2% | 27.3% | 420.0% |
| ◎ | Kosei Miura | 9 | 22.2% | 66.7% | 88.9% | 107.8% |
| × | Seina Imamura | 17 | 11.8% | 23.5% | 29.4% | 50.0% |
| × | 石神深道 | 9 | 0.0% | 11.1% | 22.2% | 0.0% |
| × | Hayato Yoshida | 6 | 0.0% | 33.3% | 33.3% | 0.0% |
Dirt1401~1800m226 starts / ◎2 ○0
Win%: 11.5%Place%: 19.5%Show%: 24.3%ROI: 141.6%
💡 Seina Imamura・Kosei Miura stand out with ROI of 553.1%・128.2%. Primary win bet candidates.ROI is on a slight downward trend. Overall show rate 24.3% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Seina Imamura | 13 | 7.7% | 7.7% | 7.7% | 553.1% |
| ◎ | Kosei Miura | 28 | 17.9% | 35.7% | 50.0% | 128.2% |
| ▲ | Christophe Lemaire | 9 | 44.4% | 66.7% | 77.8% | 75.6% |
| × | Yuji Tannai | 17 | 11.8% | 23.5% | 23.5% | 43.5% |
| × | 石神深道 | 21 | 4.8% | 9.5% | 9.5% | 19.0% |
※ 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】 Dirt 1401~1800m
◎ Jockeys: Seina Imamura (553.1%)・Kosei Miura (128.2%)
Overall ROI 141.6% / Show rate 24.3%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
🟡 Scenario B【Secondary】 Dirt ~1400m
◎ Jockeys: Yasunari Iwata (420.0%)・Kosei Miura (107.8%)
Overall ROI 78.9% / Show rate 29.9%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
🟡 Scenario C【Secondary】 Turf 1801~2200m
◎ Jockeys: Christophe Lemaire (170.0%)
Overall ROI 49.0% / Show rate 22.2%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
⚫ Conditions to Avoid
- Turf ~1400m (overall ROI 21.5%): No ◎/○ jockeys. Place/Wide only.
- Turf 1401~1800m (overall ROI 53.8%): No ◎/○ jockeys. Place/Wide only.
📋 Jockey Substitution Checklist
| Jockey | Best Condition | Best ROI | Overall ROI | Recommended Bet |
|---|---|---|---|---|
| Yasunari Iwata | Dirt 1401~1800m | 2260.0% | 593.9% | Win◎ |
| 石神深道 | Turf 2201m+ | 1427.5% | 95.5% | Place only |
| Kosei Miura | Turf 2201m+ | 783.3% | 96.2% | Win+Place |
| Seina Imamura | Dirt 1401~1800m | 553.1% | 160.0% | Win◎ |
| Ryusei Sakai | Dirt ~1400m | 490.0% | 115.0% | Win◎ |
| Christophe Lemaire | Dirt ~1400m | 260.0% | 86.6% | Win+Place |
| Takuya Ono | Turf 1801~2200m | 190.0% | 31.7% | Place only |
| Yuji Tannai | Turf 2201m+ | 145.0% | 74.8% | Place |
| Hayato Yoshida | 0% | 0.0% | Place only | |
| 田口貫太 | 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 | 292 | 11.0% | 22.3% | 31.5% | 90.9% |
| 2024 | 284 | 9.9% | 18.3% | 24.6% | 71.8% |
| 2025 | 286 | 8.0% | 17.5% | 24.1% | 96.2% |
| Total | 862 | 9.6% | 19.4% | 26.8% | 86.4% |
Turf Performance by Year × Distance
Turf Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 41 | 7.3% | 29.3% | 46.3% | 32.0% |
| 2024 | 35 | 8.6% | 11.4% | 17.1% | 18.6% |
| 2025 | 46 | 4.3% | 8.7% | 15.2% | 14.3% |
Turf Mile (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 55 | 9.1% | 20.0% | 34.5% | 65.3% |
| 2024 | 41 | 9.8% | 19.5% | 31.7% | 98.5% |
| 2025 | 50 | 2.0% | 14.0% | 24.0% | 4.6% |
Turf Middle (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 45 | 8.9% | 17.8% | 20.0% | 74.2% |
| 2024 | 55 | 7.3% | 12.7% | 20.0% | 27.1% |
| 2025 | 35 | 14.3% | 28.6% | 28.6% | 51.1% |
Turf Long (2201m+)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 20 | 15.0% | 30.0% | 45.0% | 41.0% |
| 2024 | 15 | 6.7% | 13.3% | 13.3% | 24.7% |
| 2025 | 17 | 11.8% | 11.8% | 17.6% | 474.1% |
Dirt Performance by Year × Distance
Dirt Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 39 | 10.3% | 15.4% | 15.4% | 43.1% |
| 2024 | 46 | 8.7% | 26.1% | 34.8% | 22.6% |
| 2025 | 49 | 16.3% | 26.5% | 36.7% | 160.2% |
Dirt Middle (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 70 | 14.3% | 22.9% | 28.6% | 161.0% |
| 2024 | 83 | 14.5% | 21.7% | 25.3% | 154.2% |
| 2025 | 73 | 5.5% | 13.7% | 19.2% | 108.6% |
Dirt Long (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 17 | 5.9% | 17.6% | 35.3% | 32.4% |
| 2024 | 7 | 0.0% | 14.3% | 14.3% | 0.0% |
| 2025 | 9 | 0.0% | 22.2% | 33.3% | 0.0% |
Jockey Stats (3-Year Combined / 2026 Active Only)
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Kosei Miura | 84 | 13.1% | 29.8% | 44.0% | 96.2% |
| 石神深道 | 64 | 3.1% | 7.8% | 10.9% | 95.5% |
| Seina Imamura | 52 | 7.7% | 23.1% | 25.0% | 160.0% |
| Christophe Lemaire | 32 | 34.4% | 50.0% | 71.9% | 86.6% |
| Yuji Tannai | 27 | 14.8% | 25.9% | 29.6% | 74.8% |
| Yasunari Iwata | 23 | 13.0% | 13.0% | 17.4% | 593.9% |
| Hayato Yoshida | 11 | 0.0% | 18.2% | 18.2% | 0.0% |
| Takuya Ono | 6 | 16.7% | 16.7% | 16.7% | 31.7% |
| Ryusei Sakai | 6 | 33.3% | 33.3% | 66.7% | 115.0% |
| 田口貫太 | 3 | 0.0% | 33.3% | 33.3% | 0.0% |
Key Jockey Breakdown: Turf × Dirt × Year
▶ Kosei Miura
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 25 | 0.0% | 20.0% | 40.0% | 0.0% | 14 | 21.4% | 35.7% | 57.1% | 222.1% |
| 2024 | 9 | 22.2% | 22.2% | 33.3% | 87.8% | 10 | 30.0% | 60.0% | 60.0% | 59.0% |
| 2025 | 12 | 16.7% | 16.7% | 16.7% | 227.5% | 14 | 7.1% | 35.7% | 57.1% | 61.4% |
| Total | 46 | 8.7% | 19.6% | 32.6% | 76.5% | 38 | 18.4% | 42.1% | 57.9% | 120.0% |
▶ 石神深道
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | — | — | ||||||||
| 2024 | 17 | 0.0% | 0.0% | 5.9% | 0.0% | 20 | 5.0% | 5.0% | 10.0% | 20.0% |
| 2025 | 15 | 6.7% | 13.3% | 13.3% | 380.7% | 12 | 0.0% | 16.7% | 16.7% | 0.0% |
| Total | 32 | 3.1% | 6.2% | 9.4% | 178.4% | 32 | 3.1% | 9.4% | 12.5% | 12.5% |
▶ Seina Imamura
| 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% | 33.3% | 33.3% | 0.0% | 8 | 12.5% | 12.5% | 12.5% | 66.2% |
| 2024 | 1 | 0.0% | 0.0% | 0.0% | 0.0% | 7 | 0.0% | 14.3% | 28.6% | 0.0% |
| 2025 | 16 | 6.2% | 37.5% | 37.5% | 17.5% | 17 | 11.8% | 17.6% | 17.6% | 441.8% |
| Total | 20 | 5.0% | 35.0% | 35.0% | 14.0% | 32 | 9.4% | 15.6% | 18.8% | 251.3% |
▶ Christophe Lemaire
| 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% | 100.0% | 0.0% | — | ||||
| 2024 | 7 | 42.9% | 71.4% | 85.7% | 114.3% | 4 | 50.0% | 50.0% | 75.0% | 77.5% |
| 2025 | 11 | 27.3% | 36.4% | 54.5% | 70.0% | 8 | 37.5% | 62.5% | 75.0% | 111.2% |
| Total | 20 | 30.0% | 45.0% | 70.0% | 78.5% | 12 | 41.7% | 58.3% | 75.0% | 100.0% |
▶ Yuji Tannai
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 1 | 100.0% | 100.0% | 100.0% | 290.0% | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 5 | 0.0% | 20.0% | 40.0% | 0.0% | 7 | 28.6% | 57.1% | 57.1% | 105.7% |
| 2025 | 3 | 0.0% | 0.0% | 0.0% | 0.0% | 10 | 10.0% | 10.0% | 10.0% | 99.0% |
| Total | 9 | 11.1% | 22.2% | 33.3% | 32.2% | 18 | 16.7% | 27.8% | 27.8% | 96.1% |
▶ Yasunari Iwata
| 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% | 6 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 2 | 0.0% | 0.0% | 0.0% | 0.0% | 7 | 14.3% | 14.3% | 28.6% | 1291.4% |
| 2025 | 4 | 0.0% | 0.0% | 0.0% | 0.0% | 2 | 100.0% | 100.0% | 100.0% | 2310.0% |
| Total | 8 | 0.0% | 0.0% | 0.0% | 0.0% | 15 | 20.0% | 20.0% | 26.7% | 910.7% |
▶ Hayato Yoshida
| 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% | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | — | 4 | 0.0% | 50.0% | 50.0% | 0.0% | ||||
| 2025 | — | 4 | 0.0% | 0.0% | 0.0% | 0.0% | ||||
| Total | 2 | 0.0% | 0.0% | 0.0% | 0.0% | 9 | 0.0% | 22.2% | 22.2% | 0.0% |
▶ Takuya Ono
| 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% | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | — | — | ||||||||
| 2025 | 1 | 100.0% | 100.0% | 100.0% | 190.0% | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 2 | 50.0% | 50.0% | 50.0% | 95.0% | 4 | 0.0% | 0.0% | 0.0% | 0.0% |
▶ Ryusei Sakai
| 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% | 100.0% | 0.0% | 1 | 100.0% | 100.0% | 100.0% | 200.0% |
| 2024 | 1 | 0.0% | 0.0% | 100.0% | 0.0% | 2 | 50.0% | 50.0% | 50.0% | 245.0% |
| 2025 | — | 1 | 0.0% | 0.0% | 0.0% | 0.0% | ||||
| Total | 2 | 0.0% | 0.0% | 100.0% | 0.0% | 4 | 50.0% | 50.0% | 50.0% | 172.5% |
▶ 田口貫太
| 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% | ||||
| 2024 | — | 1 | 0.0% | 100.0% | 100.0% | 0.0% | ||||
| 2025 | — | 1 | 0.0% | 0.0% | 0.0% | 0.0% | ||||
| Total | — | 3 | 0.0% | 33.3% | 33.3% | 0.0% | ||||
Grade Race Performance (G1 / G2 / G3)
G1
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 3 | 0.0% | 0.0% | 33.3% | 0.0% |
| 2024 | 5 | 20.0% | 20.0% | 20.0% | 74.0% |
| 2025 | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 10 | 10.0% | 10.0% | 20.0% | 37.0% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Christophe Lemaire | 3 | 33.3% | 33.3% | 33.3% | 123.3% |
G2
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 5 | 20.0% | 40.0% | 40.0% | 116.0% |
| 2024 | 2 | 50.0% | 50.0% | 50.0% | 155.0% |
| 2025 | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Total | 8 | 25.0% | 37.5% | 50.0% | 111.2% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Christophe Lemaire | 2 | 50.0% | 50.0% | 100.0% | 155.0% |
| Kosei Miura | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
G3
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 3 | 0.0% | 0.0% | 66.7% | 0.0% |
| 2024 | 7 | 0.0% | 14.3% | 14.3% | 0.0% |
| 2025 | 5 | 0.0% | 0.0% | 20.0% | 0.0% |
| Total | 15 | 0.0% | 6.7% | 26.7% | 0.0% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Kosei Miura | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
| Christophe Lemaire | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| Yasunari Iwata | 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.