Data period: 2023–2025 (JRA) / Target jockeys: 2026 active riders only / Win ROI = theoretical return per ¥100 bet on all starters
Trainer Ito Keizo Complete Betting Guide【2023–2025 JRA Data Analysis】
3-year combined win ROI: 58.2%. Turf 21% / Dirt 79% split. 2026 active jockeys: Kosei Miura Yuji Tannai 佐藤翔馬 Takuya Ono Takeshi Yokoyama 谷原柚希 長浜鴻緒.
※ 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~1400m102 starts / ◎0 ○0
Win%: 3.9%Place%: 8.8%Show%: 15.7%ROI: 29.7%
💡 Overall ROI 29.7%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| × | Takeshi Yokoyama | 8 | 0.0% | 0.0% | 12.5% | 0.0% |
| × | Yuji Tannai | 7 | 0.0% | 14.3% | 28.6% | 0.0% |
Turf1401~1800m61 starts / ◎0 ○0
Win%: 6.6%Place%: 11.5%Show%: 16.4%ROI: 25.1%
💡 Overall ROI 25.1%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ▲ | Takeshi Yokoyama | 9 | 22.2% | 44.4% | 44.4% | 76.7% |
| × | 佐藤翔馬 | 8 | 0.0% | 0.0% | 0.0% | 0.0% |
Turf1801~2200m26 starts / ◎0 ○0
Win%: 7.7%Place%: 11.5%Show%: 15.4%ROI: 30.4%
💡 Overall ROI 30.4%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| × | Takeshi Yokoyama | 8 | 12.5% | 12.5% | 25.0% | 46.2% |
Turf2201m+32 starts / ◎0 ○0
Win%: 12.5%Place%: 15.6%Show%: 18.8%ROI: 73.4%
💡 Overall ROI 73.4%. 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~1400m524 starts / ◎0 ○0
Win%: 6.9%Place%: 13.4%Show%: 23.7%ROI: 57.1%
💡 Overall ROI 57.1%. No ◎/○ jockeys among active riders. Consider Place/Wide bets only.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| × | 長浜鴻緒 | 25 | 8.0% | 20.0% | 28.0% | 53.6% |
| × | 佐藤翔馬 | 18 | 11.1% | 16.7% | 16.7% | 38.3% |
| × | Yuji Tannai | 9 | 11.1% | 11.1% | 11.1% | 15.6% |
| × | Takeshi Yokoyama | 33 | 3.0% | 18.2% | 36.4% | 7.3% |
| × | Kosei Miura | 14 | 0.0% | 21.4% | 35.7% | 0.0% |
| × | 谷原柚希 | 14 | 0.0% | 7.1% | 7.1% | 0.0% |
| × | Takuya Ono | 9 | 0.0% | 11.1% | 22.2% | 0.0% |
Dirt1401~1800m299 starts / ◎2 ○0
Win%: 9.0%Place%: 20.1%Show%: 27.8%ROI: 82.3%
💡 長浜鴻緒・Yuji Tannai stand out with ROI of 260.0%・133.0%. Primary win bet candidates.ROI is on an upward trend. Overall show rate 27.8% is high — effective as place anchor.
| Rating | Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|---|
| ◎ | 長浜鴻緒 | 7 | 14.3% | 14.3% | 28.6% | 260.0% |
| ◎ | Yuji Tannai | 27 | 18.5% | 33.3% | 37.0% | 133.0% |
| × | Takeshi Yokoyama | 22 | 18.2% | 22.7% | 40.9% | 54.5% |
| × | 谷原柚希 | 8 | 0.0% | 25.0% | 25.0% | 0.0% |
| × | 佐藤翔馬 | 6 | 0.0% | 0.0% | 0.0% | 0.0% |
| × | Kosei Miura | 5 | 0.0% | 20.0% | 20.0% | 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 1401~1800m
◎ Jockeys: 長浜鴻緒 (260.0%)・Yuji Tannai (133.0%)
Overall ROI 82.3% / Show rate 27.8%. Bet aggressively when ◎ jockeys confirmed.
💰 Recommended: Win + Place. For long-shot ◎ jockeys, go heavier on Place/Wide.
⚫ Conditions to Avoid
- Turf ~1400m (overall ROI 29.7%): No ◎/○ jockeys. Place/Wide only.
- Turf 1401~1800m (overall ROI 25.1%): No ◎/○ jockeys. Place/Wide only.
- Turf 1801~2200m (overall ROI 30.4%): No ◎/○ jockeys. Place/Wide only.
- Dirt ~1400m (overall ROI 57.1%): No ◎/○ jockeys. Place/Wide only.
📋 Jockey Substitution Checklist
| Jockey | Best Condition | Best ROI | Overall ROI | Recommended Bet |
|---|---|---|---|---|
| Takeshi Yokoyama | Turf 2201m+ | 330.0% | 38.8% | Place only |
| 長浜鴻緒 | Dirt 1401~1800m | 260.0% | 95.8% | Win+Place |
| Yuji Tannai | Dirt 1401~1800m | 133.0% | 76.1% | Place |
| 佐藤翔馬 | Dirt ~1400m | 38.3% | 18.6% | Place only |
| 谷原柚希 | 0% | 0.0% | Place only | |
| Kosei Miura | 0% | 0.0% | Place only | |
| Takuya Ono | 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 | 327 | 6.1% | 12.2% | 19.6% | 31.1% |
| 2024 | 368 | 9.2% | 17.4% | 26.1% | 101.8% |
| 2025 | 381 | 6.6% | 14.7% | 23.9% | 39.4% |
| Total | 1076 | 7.3% | 14.9% | 23.3% | 58.2% |
Turf Performance by Year × Distance
Turf Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 25 | 4.0% | 12.0% | 16.0% | 20.8% |
| 2024 | 32 | 6.2% | 12.5% | 12.5% | 34.1% |
| 2025 | 45 | 2.2% | 4.4% | 17.8% | 31.6% |
Turf Mile (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 27 | 11.1% | 18.5% | 22.2% | 41.1% |
| 2024 | 18 | 5.6% | 11.1% | 22.2% | 23.3% |
| 2025 | 16 | 0.0% | 0.0% | 0.0% | 0.0% |
Turf Middle (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 8 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 5 | 20.0% | 20.0% | 20.0% | 74.0% |
| 2025 | 13 | 7.7% | 15.4% | 23.1% | 32.3% |
Turf Long (2201m+)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 11 | 9.1% | 9.1% | 18.2% | 48.2% |
| 2024 | 13 | 23.1% | 30.8% | 30.8% | 140.0% |
| 2025 | 8 | 0.0% | 0.0% | 0.0% | 0.0% |
Dirt Performance by Year × Distance
Dirt Sprint (~1400m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 148 | 6.8% | 11.5% | 19.6% | 33.4% |
| 2024 | 183 | 7.1% | 13.1% | 25.7% | 101.2% |
| 2025 | 193 | 6.7% | 15.0% | 24.9% | 33.6% |
Dirt Middle (1401~1800m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 94 | 4.3% | 13.8% | 22.3% | 30.4% |
| 2024 | 110 | 12.7% | 25.5% | 31.8% | 138.5% |
| 2025 | 95 | 9.5% | 20.0% | 28.4% | 68.5% |
Dirt Long (1801~2200m)
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 9 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 6 | 0.0% | 16.7% | 16.7% | 0.0% |
| 2025 | 5 | 20.0% | 60.0% | 80.0% | 36.0% |
Jockey Stats (3-Year Combined / 2026 Active Only)
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Takeshi Yokoyama | 86 | 11.6% | 20.9% | 34.9% | 38.8% |
| Yuji Tannai | 49 | 12.2% | 22.4% | 26.5% | 76.1% |
| 佐藤翔馬 | 37 | 5.4% | 8.1% | 8.1% | 18.6% |
| 長浜鴻緒 | 33 | 9.1% | 18.2% | 27.3% | 95.8% |
| 谷原柚希 | 29 | 0.0% | 10.3% | 10.3% | 0.0% |
| Kosei Miura | 21 | 0.0% | 19.0% | 28.6% | 0.0% |
| Takuya Ono | 10 | 0.0% | 10.0% | 20.0% | 0.0% |
Key Jockey Breakdown: Turf × Dirt × Year
▶ Takeshi Yokoyama
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | 8 | 12.5% | 25.0% | 25.0% | 33.8% | 14 | 0.0% | 0.0% | 14.3% | 0.0% |
| 2024 | 13 | 23.1% | 30.8% | 30.8% | 111.5% | 18 | 16.7% | 33.3% | 44.4% | 50.0% |
| 2025 | 6 | 0.0% | 0.0% | 33.3% | 0.0% | 27 | 11.1% | 22.2% | 44.4% | 26.7% |
| Total | 27 | 14.8% | 22.2% | 29.6% | 63.7% | 59 | 10.2% | 20.3% | 37.3% | 27.5% |
▶ Yuji Tannai
| 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% | 5 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 2 | 0.0% | 0.0% | 0.0% | 0.0% | 8 | 0.0% | 12.5% | 12.5% | 0.0% |
| 2025 | 7 | 0.0% | 0.0% | 14.3% | 0.0% | 24 | 25.0% | 37.5% | 41.7% | 155.4% |
| Total | 12 | 0.0% | 8.3% | 16.7% | 0.0% | 37 | 16.2% | 27.0% | 29.7% | 100.8% |
▶ 佐藤翔馬
| 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 | 12 | 0.0% | 0.0% | 0.0% | 0.0% | 24 | 8.3% | 12.5% | 12.5% | 28.7% |
| Total | 13 | 0.0% | 0.0% | 0.0% | 0.0% | 24 | 8.3% | 12.5% | 12.5% | 28.7% |
▶ 長浜鴻緒
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | — | — | ||||||||
| 2024 | — | — | ||||||||
| 2025 | 1 | 0.0% | 0.0% | 0.0% | 0.0% | 32 | 9.4% | 18.8% | 28.1% | 98.8% |
| Total | 1 | 0.0% | 0.0% | 0.0% | 0.0% | 32 | 9.4% | 18.8% | 28.1% | 98.8% |
▶ 谷原柚希
| Year | Turf Starts | Turf Win% | Turf Place% | Turf Show% | Turf ROI | Dirt Starts | Dirt Win% | Dirt Place% | Dirt Show% | Dirt ROI |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | — | — | ||||||||
| 2024 | — | — | ||||||||
| 2025 | 7 | 0.0% | 0.0% | 0.0% | 0.0% | 22 | 0.0% | 13.6% | 13.6% | 0.0% |
| Total | 7 | 0.0% | 0.0% | 0.0% | 0.0% | 22 | 0.0% | 13.6% | 13.6% | 0.0% |
▶ Kosei Miura
| 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% | 0.0% | 0.0% | 0.0% | ||||
| 2025 | — | 19 | 0.0% | 21.1% | 31.6% | 0.0% | ||||
| Total | 1 | 0.0% | 0.0% | 0.0% | 0.0% | 20 | 0.0% | 20.0% | 30.0% | 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 | — | — | ||||||||
| 2024 | — | 7 | 0.0% | 14.3% | 28.6% | 0.0% | ||||
| 2025 | — | 3 | 0.0% | 0.0% | 0.0% | 0.0% | ||||
| Total | — | 10 | 0.0% | 10.0% | 20.0% | 0.0% | ||||
Grade Race Performance (G1 / G2 / G3)
G1
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | — | ||||
| 2025 | — | ||||
| Total | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
G2
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 4 | 0.0% | 0.0% | 0.0% | 0.0% |
| Jockey | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| Takeshi Yokoyama | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
G3
| Year | Starts | Win% | Place% | Show% | Win ROI |
|---|---|---|---|---|---|
| 2023 | 4 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2024 | 2 | 0.0% | 0.0% | 0.0% | 0.0% |
| 2025 | 1 | 0.0% | 0.0% | 0.0% | 0.0% |
| Total | 7 | 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.