Data period: 2023–2025 (JRA) / Target jockeys: 2026 active riders only / Win ROI = theoretical return per ¥100 bet on all starters
Trainer Terashima Ryo Complete Betting Guide【2023–2025 JRA Data Analysis】
3-year combined win ROI: 83.5%. Turf 45% / Dirt 55% split. 2026 active jockeys: Christophe Lemaire Seina Imamura 小崎綾也 Nozomi Iwata 川又賢治 Kohei Matsuyama Yutaka Take 高杉吏麒 高田潤.
※ 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~1400m156 starts / ◎1 ○1
Win%: 7.7%Place%: 11.5%Show%: 14.7%ROI: 189.4%
💡 Seina Imamura stand out with ROI of 170.9%. Primary win bet candidates.Nozomi Iwata also show solid stats for win or place bets.ROI is on an upward trend.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Seina Imamura | 23 | 8.7% | 13.0% | 17.4% | 170.9% |
| ○ | Nozomi Iwata | 8 | 25.0% | 25.0% | 25.0% | 95.0% |
| × | 小崎綾也 | 12 | 0.0% | 0.0% | 0.0% | 0.0% |
| × | Kohei Matsuyama | 7 | 0.0% | 0.0% | 0.0% | 0.0% |
| × | 川又賢治 | 7 | 0.0% | 0.0% | 0.0% | 0.0% |
Turf1401~1800m91 starts / ◎1 ○0
Win%: 7.7%Place%: 15.4%Show%: 18.7%ROI: 183.7%
💡 Nozomi Iwata stand out with ROI of 287.1%. Primary win bet candidates.ROI is on an upward trend.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Nozomi Iwata | 14 | 14.3% | 21.4% | 28.6% | 287.1% |
| × | Seina Imamura | 24 | 4.2% | 8.3% | 8.3% | 50.4% |
Turf1801~2200m112 starts / ◎0 ○2
Win%: 4.5%Place%: 10.7%Show%: 17.9%ROI: 27.0%
💡 Kohei Matsuyama・小崎綾也 also show solid stats for win or place bets.ROI is on a slight downward trend.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ○ | Kohei Matsuyama | 10 | 20.0% | 20.0% | 20.0% | 96.0% |
| ○ | 小崎綾也 | 6 | 16.7% | 16.7% | 16.7% | 90.0% |
| ▲ | Nozomi Iwata | 14 | 7.1% | 14.3% | 14.3% | 82.1% |
| × | Seina Imamura | 27 | 3.7% | 14.8% | 22.2% | 13.7% |
Turf2201m+85 starts / ◎2 ○0
Win%: 14.1%Place%: 24.7%Show%: 30.6%ROI: 92.1%
💡 Seina Imamura・Nozomi Iwata stand out with ROI of 199.2%・135.6%. Primary win bet candidates.ROI is stable. Overall show rate 30.6% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Seina Imamura | 12 | 8.3% | 8.3% | 8.3% | 199.2% |
| ◎ | Nozomi Iwata | 9 | 11.1% | 22.2% | 44.4% | 135.6% |
| ▲ | Yutaka Take | 5 | 20.0% | 40.0% | 40.0% | 60.0% |
Dirt~1400m208 starts / ◎2 ○0
Win%: 9.6%Place%: 17.8%Show%: 26.4%ROI: 61.0%
💡 高杉吏麒・Christophe Lemaire stand out with ROI of 598.3%・105.7%. Primary win bet candidates.ROI is on an upward trend. Overall show rate 26.4% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | 高杉吏麒 | 6 | 16.7% | 16.7% | 16.7% | 598.3% |
| ◎ | Christophe Lemaire | 7 | 28.6% | 42.9% | 71.4% | 105.7% |
| × | Seina Imamura | 35 | 8.6% | 22.9% | 31.4% | 46.6% |
| × | Kohei Matsuyama | 19 | 21.1% | 42.1% | 57.9% | 45.3% |
| × | 川又賢治 | 18 | 11.1% | 16.7% | 33.3% | 40.0% |
| × | Nozomi Iwata | 18 | 0.0% | 5.6% | 11.1% | 0.0% |
| × | 小崎綾也 | 11 | 0.0% | 0.0% | 0.0% | 0.0% |
| × | Yutaka Take | 7 | 0.0% | 14.3% | 42.9% | 0.0% |
Dirt1401~1800m257 starts / ◎1 ○1
Win%: 7.0%Place%: 15.6%Show%: 24.9%ROI: 38.6%
💡 Yutaka Take stand out with ROI of 117.5%. Primary win bet candidates.Nozomi Iwata also show solid stats for win or place bets.ROI is on a slight downward trend. Overall show rate 24.9% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | Yutaka Take | 8 | 37.5% | 50.0% | 75.0% | 117.5% |
| ○ | Nozomi Iwata | 27 | 14.8% | 22.2% | 29.6% | 99.6% |
| × | Seina Imamura | 46 | 6.5% | 15.2% | 23.9% | 31.7% |
| × | 小崎綾也 | 28 | 0.0% | 10.7% | 10.7% | 0.0% |
| × | 川又賢治 | 12 | 0.0% | 0.0% | 8.3% | 0.0% |
| × | Kohei Matsuyama | 8 | 0.0% | 0.0% | 0.0% | 0.0% |
| × | 高杉吏麒 | 8 | 0.0% | 12.5% | 37.5% | 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】 Dirt ~1400m
◎ Jockeys: 高杉吏麒 (598.3%)・Christophe Lemaire (105.7%)
Overall ROI 61.0% / Show rate 26.4%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
🟡 Scenario B【Secondary】 Turf 1401~1800m
◎ Jockeys: Nozomi Iwata (287.1%)
Overall ROI 183.7% / Show rate 18.7%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
🟡 Scenario C【Secondary】 Turf 2201m+
◎ Jockeys: Seina Imamura (199.2%)・Nozomi Iwata (135.6%)
Overall ROI 92.1% / Show rate 30.6%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
📋 Jockey Substitution Checklist
| Jockey | Best Condition | Best ROI | Overall ROI | Recommended Bet |
|---|---|---|---|---|
| 小崎綾也 | Turf 1401~1800m | 2487.5% | 143.7% | Win◎ |
| 高杉吏麒 | Dirt ~1400m | 598.3% | 163.2% | Win◎ |
| Nozomi Iwata | Turf 1401~1800m | 287.1% | 103.6% | Win◎ |
| Christophe Lemaire | Turf ~1400m | 200.0% | 88.0% | Win+Place |
| Seina Imamura | Turf 2201m+ | 199.2% | 63.9% | Place |
| Yutaka Take | Dirt 1401~1800m | 117.5% | 62.4% | Place |
| Kohei Matsuyama | Turf 1401~1800m | 102.5% | 48.0% | Place only |
| 高田潤 | Turf 2201m+ | 90.0% | 130.0% | Place only |
| 川又賢治 | Dirt ~1400m | 40.0% | 15.7% | 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 | 360 | 8.6% | 15.0% | 23.6% | 73.5% |
| 2024 | 329 | 8.5% | 18.8% | 23.7% | 53.5% |
| 2025 | 304 | 8.2% | 16.4% | 23.4% | 127.8% |
| Total | 993 | 8.5% | 16.7% | 23.6% | 83.5% |
Turf Performance by Year × Distance
Turf Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 58 | 10.3% | 13.8% | 19.0% | 244.8% |
| 2024 | 58 | 5.2% | 10.3% | 12.1% | 35.2% |
| 2025 | 40 | 7.5% | 10.0% | 12.5% | 332.5% |
Turf Mile (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 39 | 2.6% | 7.7% | 7.7% | 31.0% |
| 2024 | 22 | 4.5% | 18.2% | 22.7% | 25.5% |
| 2025 | 30 | 16.7% | 23.3% | 30.0% | 498.3% |
Turf Middle (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 56 | 3.6% | 8.9% | 17.9% | 27.1% |
| 2024 | 38 | 7.9% | 18.4% | 23.7% | 39.5% |
| 2025 | 18 | 0.0% | 0.0% | 5.6% | 0.0% |
Turf Long (2201m+)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 30 | 13.3% | 13.3% | 23.3% | 76.7% |
| 2024 | 33 | 15.2% | 36.4% | 42.4% | 119.4% |
| 2025 | 22 | 13.6% | 22.7% | 22.7% | 72.3% |
Dirt Performance by Year × Distance
Dirt Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 43 | 7.0% | 14.0% | 27.9% | 13.7% |
| 2024 | 72 | 13.9% | 22.2% | 30.6% | 78.9% |
| 2025 | 93 | 7.5% | 16.1% | 22.6% | 69.0% |
Dirt Middle (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 102 | 11.8% | 19.6% | 32.4% | 58.7% |
| 2024 | 73 | 2.7% | 9.6% | 12.3% | 35.6% |
| 2025 | 82 | 4.9% | 15.9% | 26.8% | 16.1% |
Dirt Long (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 23 | 13.0% | 26.1% | 26.1% | 27.8% |
| 2024 | 20 | 15.0% | 25.0% | 35.0% | 49.5% |
| 2025 | 13 | 15.4% | 38.5% | 53.8% | 71.5% |
Jockey Stats (3-Year Combined / 2026 Active Only)
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Seina Imamura | 172 | 6.4% | 14.5% | 20.3% | 63.9% |
| Nozomi Iwata | 95 | 10.5% | 16.8% | 23.2% | 103.6% |
| 小崎綾也 | 73 | 2.7% | 6.8% | 6.8% | 143.7% |
| Kohei Matsuyama | 55 | 14.5% | 23.6% | 30.9% | 48.0% |
| 川又賢治 | 46 | 4.3% | 8.7% | 19.6% | 15.7% |
| Yutaka Take | 29 | 20.7% | 34.5% | 55.2% | 62.4% |
| 高杉吏麒 | 22 | 4.5% | 13.6% | 22.7% | 163.2% |
| Christophe Lemaire | 15 | 26.7% | 40.0% | 53.3% | 88.0% |
| 高田潤 | 4 | 50.0% | 75.0% | 75.0% | 130.0% |
Key Jockey Breakdown: Turf × Dirt × Year
▶ Seina Imamura
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 50 | 6.0% | 16.0% | 22.0% | 43.0% | 38 | 7.9% | 18.4% | 28.9% | 35.3% |
| 2024 | 16 | 6.2% | 6.2% | 6.2% | 149.4% | 28 | 7.1% | 21.4% | 25.0% | 52.1% |
| 2025 | 20 | 5.0% | 5.0% | 5.0% | 168.0% | 20 | 5.0% | 10.0% | 20.0% | 14.5% |
| Total | 86 | 5.8% | 11.6% | 15.1% | 91.9% | 86 | 7.0% | 17.4% | 25.6% | 35.9% |
▶ Nozomi Iwata
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 22 | 13.6% | 13.6% | 18.2% | 128.2% | 11 | 18.2% | 18.2% | 18.2% | 68.2% |
| 2024 | 14 | 7.1% | 21.4% | 28.6% | 22.1% | 16 | 6.2% | 6.2% | 12.5% | 103.8% |
| 2025 | 9 | 22.2% | 33.3% | 44.4% | 446.7% | 23 | 4.3% | 17.4% | 26.1% | 12.2% |
| Total | 45 | 13.3% | 20.0% | 26.7% | 158.9% | 50 | 8.0% | 14.0% | 20.0% | 53.8% |
▶ 小崎綾也
| 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% | 23 | 0.0% | 4.3% | 4.3% | 0.0% |
| 2024 | 12 | 8.3% | 8.3% | 8.3% | 45.0% | 17 | 0.0% | 11.8% | 11.8% | 0.0% |
| 2025 | 9 | 11.1% | 11.1% | 11.1% | 1105.6% | 9 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 24 | 8.3% | 8.3% | 8.3% | 437.1% | 49 | 0.0% | 6.1% | 6.1% | 0.0% |
▶ Kohei Matsuyama
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 7 | 0.0% | 0.0% | 14.3% | 0.0% | 9 | 11.1% | 33.3% | 44.4% | 16.7% |
| 2024 | 8 | 37.5% | 37.5% | 37.5% | 171.2% | 12 | 16.7% | 33.3% | 41.7% | 45.8% |
| 2025 | 10 | 10.0% | 10.0% | 10.0% | 41.0% | 9 | 11.1% | 22.2% | 33.3% | 17.8% |
| Total | 25 | 16.0% | 16.0% | 20.0% | 71.2% | 30 | 13.3% | 30.0% | 40.0% | 28.7% |
▶ 川又賢治
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 5 | 0.0% | 0.0% | 0.0% | 0.0% | 9 | 0.0% | 11.1% | 22.2% | 0.0% |
| 2024 | 4 | 0.0% | 0.0% | 0.0% | 0.0% | 7 | 0.0% | 0.0% | 14.3% | 0.0% |
| 2025 | 4 | 0.0% | 0.0% | 0.0% | 0.0% | 17 | 11.8% | 17.6% | 35.3% | 42.4% |
| Total | 13 | 0.0% | 0.0% | 0.0% | 0.0% | 33 | 6.1% | 12.1% | 27.3% | 21.8% |
▶ Yutaka Take
| 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% | 5 | 20.0% | 20.0% | 60.0% | 38.0% |
| 2024 | 2 | 50.0% | 100.0% | 100.0% | 150.0% | 6 | 33.3% | 50.0% | 50.0% | 95.0% |
| 2025 | 4 | 0.0% | 0.0% | 25.0% | 0.0% | 10 | 20.0% | 40.0% | 70.0% | 75.0% |
| Total | 8 | 12.5% | 25.0% | 37.5% | 37.5% | 21 | 23.8% | 38.1% | 61.9% | 71.9% |
▶ 高杉吏麒
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | — | — | ||||||||
| 2024 | 5 | 0.0% | 20.0% | 20.0% | 0.0% | 5 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 3 | 0.0% | 0.0% | 0.0% | 0.0% | 9 | 11.1% | 22.2% | 44.4% | 398.9% |
| Total | 8 | 0.0% | 12.5% | 12.5% | 0.0% | 14 | 7.1% | 14.3% | 28.6% | 256.4% |
▶ Christophe Lemaire
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 3 | 33.3% | 33.3% | 33.3% | 133.3% | 1 | 0.0% | 0.0% | 100.0% | 0.0% |
| 2024 | — | 5 | 40.0% | 40.0% | 40.0% | 84.0% | ||||
| 2025 | — | 6 | 16.7% | 50.0% | 66.7% | 83.3% | ||||
| Total | 3 | 33.3% | 33.3% | 33.3% | 133.3% | 12 | 25.0% | 41.7% | 58.3% | 76.7% |
▶ 高田潤
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | — | — | ||||||||
| 2024 | — | — | ||||||||
| 2025 | 2 | 50.0% | 100.0% | 100.0% | 90.0% | 2 | 50.0% | 50.0% | 50.0% | 170.0% |
| Total | 2 | 50.0% | 100.0% | 100.0% | 90.0% | 2 | 50.0% | 50.0% | 50.0% | 170.0% |
Grade Race Performance (G1 / G2 / G3)
G1
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 6 | 0.0% | 0.0% | 0.0% | 0.0% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Seina Imamura | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| Nozomi Iwata | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
G2
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | — | ||||
| 2024 | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 3 | 0.0% | 0.0% | 0.0% | 0.0% |
G3
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 12 | 8.3% | 8.3% | 25.0% | 21.7% |
| 2024 | 7 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | — | ||||
| Total | 19 | 5.3% | 5.3% | 15.8% | 13.7% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Seina Imamura | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| 小崎綾也 | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| Kohei Matsuyama | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| Christophe Lemaire | 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.