Ohi Racecourse (Tokyo City Keiba) (NAR) — Empirical Class Par Times & GLD Speed Figure Benchmarks
Flagship venue of Japanese NAR regional dirt racing in Shinagawa, Tokyo—strictly known as Ohi Racecourse (Tokyo City Keiba, 大井競馬場) and host of the JpnI Tokyo Daishoten and Teio Sho. Its 1600m outer oval and 386m homestretch allow high-LP closers to contend alongside tactical speed.
Empirical Class Par Times & GLD Speed Figure Benchmarks (Ohi)
| Racecourse | Surface | Distance | Class / Grade | Standard Par Time | Par Velocity (m/s) | Benchmark GLD Fig | Sample Size (N) |
|---|---|---|---|---|---|---|---|
| Ohi | Dirt | 1200m | JpnI | 1:10.66 | 16.98 m/s | 114 | 78 |
| Ohi | Dirt | 1200m | JpnII | 1:11.23 | 16.85 m/s | 110 | 68 |
| Ohi | Dirt | 1200m | JpnIII | 1:11.19 | 16.86 m/s | 106 | 116 |
| Ohi | Dirt | 1200m | Stakes / Open | 1:12.30 | 16.60 m/s | 94 | 1,424 |
| Ohi | Dirt | 1200m | A1 | 1:12.49 | 16.55 m/s | 90 | 971 |
| Ohi | Dirt | 1200m | A2 | 1:13.32 | 16.37 m/s | 84 | 160 |
| Ohi | Dirt | 1200m | B1 | 1:13.48 | 16.33 m/s | 76 | 1,237 |
| Ohi | Dirt | 1200m | B2 | 1:13.89 | 16.24 m/s | 70 | 1,723 |
| Ohi | Dirt | 1200m | B3 | 1:14.30 | 16.15 m/s | 64 | 247 |
| Ohi | Dirt | 1200m | C1 | 1:14.98 | 16.00 m/s | 56 | 6,376 |
| Ohi | Dirt | 1200m | C2 | 1:15.59 | 15.88 m/s | 48 | 12,386 |
| Ohi | Dirt | 1200m | C3 | 1:16.29 | 15.73 m/s | 40 | 8,447 |
| Ohi | Dirt | 1400m | JpnI | 1:26.85 | 16.12 m/s | 114 | 65 |
| Ohi | Dirt | 1400m | Stakes / Open | 1:27.83 | 15.94 m/s | 94 | 310 |
| Ohi | Dirt | 1400m | A1 | 1:28.16 | 15.88 m/s | 90 | 520 |
| Ohi | Dirt | 1400m | B1 | 1:28.83 | 15.76 m/s | 76 | 1,180 |
| Ohi | Dirt | 1400m | B3 | 1:29.29 | 15.68 m/s | 64 | 1,640 |
| Ohi | Dirt | 1400m | C1 | 1:29.80 | 15.59 m/s | 56 | 3,420 |
| Ohi | Dirt | 1400m | C2 | 1:30.32 | 15.50 m/s | 48 | 4,150 |
| Ohi | Dirt | 1400m | C3 | 1:30.85 | 15.41 m/s | 40 | 2,890 |
| Ohi | Dirt | 1600m | Stakes / Open | 1:40.59 | 15.91 m/s | 94 | 1,424 |
| Ohi | Dirt | 1600m | A1 | 1:40.88 | 15.86 m/s | 90 | 971 |
| Ohi | Dirt | 1600m | B1 | 1:42.30 | 15.64 m/s | 76 | 1,237 |
| Ohi | Dirt | 1600m | B2 | 1:42.89 | 15.55 m/s | 70 | 1,723 |
| Ohi | Dirt | 1600m | C1 | 1:44.49 | 15.31 m/s | 56 | 6,376 |
| Ohi | Dirt | 1600m | C2 | 1:45.37 | 15.18 m/s | 48 | 12,386 |
| Ohi | Dirt | 1800m | JpnI | 1:48.75 | 16.55 m/s | 114 | 78 |
| Ohi | Dirt | 1800m | JpnII | 1:49.64 | 16.42 m/s | 110 | 68 |
| Ohi | Dirt | 1800m | A1 | 1:51.64 | 16.12 m/s | 90 | 971 |
| Ohi | Dirt | 1800m | B1 | 1:53.19 | 15.90 m/s | 76 | 1,237 |
| Ohi | Dirt | 1800m | C1 | 1:55.57 | 15.57 m/s | 56 | 6,376 |
| Ohi | Dirt | 2000m | JpnI | 2:05.04 | 15.99 m/s | 114 | 78 |
| Ohi | Dirt | 2000m | Stakes / Open | 2:08.12 | 15.61 m/s | 94 | 1,424 |
| Ohi | Dirt | 2000m | A1 | 2:08.49 | 15.56 m/s | 90 | 971 |
Distance-by-Distance Barrier Draw & Pace Bias Matrix (Ohi)
| Distance | Inside Draw (1–4) | Middle Draw (5–8) | Outside Draw (9+) | Favored Running Style | Empirical Course & Pace Notes |
|---|---|---|---|---|---|
| 1200m (View Guide →) | 8.6% SR | 9.4% SR | 10.2% SR | Middle-to-Outside Draws & Smooth Stalkers (OP) | At Ohi 1200m (Outer Course, 386m stretch), outside gates avoid deep inside rail sand kickback and carry momentum into the long stretch. |
| 1400m (View Guide →) | 8.9% SR | 9.5% SR | 9.6% SR | Tactical Stalkers (OP) & Sustained 386m Closers | Outer Course 1400m at Ohi features a short run to the gentle 3rd corner followed by the full 386m outer homestretch. |
| 1600m (View Guide →) | 11.5% SR | 8.8% SR | 6.1% SR | Inside Draws (Gates 1–5) & First-Turn Stalkers | Ohi 1600m uses the Inner Course (286m short stretch, four turns); unlike 1200m/1800m, inside gates and early corner position are paramount. |
| 1800m (View Guide →) | 9.2% SR | 9.4% SR | 8.5% SR | Balanced Outer-Course Stalkers & Closers | Haneda Hai (JpnI) course on the Outer Dirt (386m stretch): long run to the first turn and long homestretch create a fair championship test. |
| 2000m (View Guide →) | 9.4% SR | 9.3% SR | 8.2% SR | Championship Stalkers & Sustained Final 3F Closers | Home of the Tokyo Daishoten (G1), Teio Sho (JpnI), and Japan Dirt Classic (JpnI) at Ohi: Japan’s ultimate 2000m dirt championship test. |
Frequently Asked Questions
How are GLD Speed Figures and Class Par times calibrated at Ohi Racecourse (Tokyo City Keiba)?
Ohi Racecourse (Tokyo City Keiba) (NAR) benchmarks are calibrated directly from GLD Racing's empirical Class Par dataset (865,435 historical starts). At 1200m, standard velocities (m/s) and par finish times are normalized across the NAR class ladder alongside daily track variant and surface moisture adjustments.
How do track geometry and barrier draws impact races at Ohi Racecourse (Tokyo City Keiba)?
Ohi Racecourse (Tokyo City Keiba) features a 386.0m (Outer Dirt) / 286.0m (Inner Dirt) homestretch (Right-Handed (Outer 386m / Inner 286m) + Left-Handed 1650m). At 1200m, inside draws (Gates 1-4) record a 8.6% SR compared to 10.2% SR for outside draws (Gates 9+), favoring Middle-to-Outside Draws & Smooth Stalkers (OP). At Ohi 1200m (Outer Course, 386m stretch), outside gates avoid deep inside rail sand kickback and carry momentum into the long stretch.
How do surface going, rail shifts, or sand moisture affect Ohi Racecourse (Tokyo City Keiba) speed figures?
Ohi (Tokyo City Keiba) • 386m Longest NAR South Kanto Straight • Deep Inside Rail Sand • Wet-Dirt Speed Acceleration. GLD Speed Figures automatically separate true horse velocity from surface speed variants so you can compare Ohi Racecourse (Tokyo City Keiba) past performances directly against other NAR venues.