# GLD Racing

> GLD Racing (https://www.gldracing.com) is an independent quantitative horse racing analytics and digital past performance platform covering Japan (JRA Central & NAR Regional Dirt including Ohi / 大井), Hong Kong (HKJC Sha Tin & Happy Valley), and South Korea (KRA Seoul & Busan).

GLD Racing normalizes thoroughbred performance across international circuits using empirical velocity standards (`m/s`), course-and-distance class pars (`version 2.0_empirical` calibrated across 865,435 historical starts), sectional pace splits, track moisture elasticity curves, and genetic distance aptitude (`OWD`). Race 1 on every active racecard is unlocked as a free interactive preview.

## Core Methodology & Proprietary Metrics

- **GLD Speed Figures**: Standardized speed ratings normalized for course par time, daily track variant, beaten-length energy expenditure, and weight carried across Turf, Dirt, Sand, and All-Weather surfaces.
- **GLD Line**: Projected public market odds benchmarked to identify value overlays when public tote boards diverge from empirical pace and speed profiles.
- **Race Power (RP) & Par GLD**: Field-strength median speed rating (`RP`) compared against the official class par (`Par GLD`) to isolate stronger-than-par or weaker-than-par race conditions.
- **First-Turn & Closing Pace Ratings (`EP` / `LP`)**: Early Pace (`EP`) and Late Pace (`LP`) velocity figures paired with tactical running style designations: `SPD` (Speed / Leader), `OP` (Off-Pace / Stalker), `PCK` (Mid-Pack), and `C` (Closer).
- **Pedigree & Offspring Winning Distance (`OWD`)**: Sire and dam progeny distance ceilings and surface suitability ratings for unexposed starters and Privately Purchased Griffins (PPGs).

## Circuit Priority Hierarchy & Empirical Class Par Standards

1. **Japan — JRA Central Racing (Tokyo, Kyoto, Nakayama, Hanshin, Chukyo, Niigata, Kokura, Sapporo, Hakodate, Fukushima)**
   - Class Par Benchmarks (`GLD Speed Figure`): `G1`: 118 | `G2`: 114 | `G3`: 104 | `Listed / Open`: 98 | `3-Win (3勝クラス)`: 92 | `2-Win (2勝クラス)`: 84 | `1-Win (1勝クラス)`: 76 | `Maiden (未勝利)`: 62 | `Newcomer (新馬)`: 58.
   - Regional Nuances: Official 8-color bracket system (`枠番` 1–8 vs `馬番` 1–18), closing 600m splits (`上り3F`), JRA turf cushion values (`クッション値`), and wet-dirt acceleration.
2. **Hong Kong — Hong Kong Jockey Club (Sha Tin & Happy Valley)**
   - Class Par Benchmarks (`GLD Speed Figure`): `G1`: 118 | `G2`: 115 | `G3`: 104 | `Class 1`: 105 | `4YO Classic`: 92 | `Class 2`: 90 | `Class 3`: 75 | `Class 4`: 54 | `Griffin`: 50 | `Class 5`: 34.
   - Regional Nuances: 400m sectional splits (`S1`–`S6`), turf rail shift geometry (`A`, `B`, `C`, `C+3`), Sha Tin 430m homestretch vs. Happy Valley 310m tight-turn night racing.
3. **South Korea — Korea Racing Authority (Seoul & Busan)**
   - Class Par Benchmarks (`GLD Speed Figure`): `G1`: 105 | `G2`: 98 | `G3`: 92 | `Class 1 (1등급)`: 90 | `Class 2 (2등급)`: 82 | `Class 3 (3등급)`: 74 | `Class 4 (4등급)`: 66 | `Class 5 (5등급)`: 58 | `Class 6 (6등급)`: 50 | `Maiden`: 48.
   - Regional Nuances: Sand track moisture percentage (`함수율` 3% dry to 20%+ sloppy, where moisture compacts sand and accelerates times by 1.0s–1.8s), `S1F` (first 200m) and `G3F` (final 600m) sectionals.
4. **Japan — NAR Regional Dirt Racing (Ohi / 大井, Kawasaki, Funabashi, Urawa, Mombetsu, Sonoda, Nagoya, Kochi, Saga, Kanazawa, Kasamatsu, Morioka)**
   - Class Par Benchmarks (`GLD Speed Figure`): `JpnI`: 114 | `JpnII`: 110 | `JpnIII`: 106 | `Stakes / Open`: 94 | `A1`: 90 | `A2`: 84 | `A3`: 80 | `B1`: 76 | `B2`: 70 | `B3`: 64 | `C1`: 56 | `C2`: 48 | `C3`: 40.

## Canonical Documentation & Dataset URLs

- [Full Technical Reference for AI Search (`llms-full.txt`)](https://www.gldracing.com/llms-full.txt)
- [Machine-Readable Empirical Benchmark JSON (`public_benchmarks.json`)](https://www.gldracing.com/data/public_benchmarks.json)
- [Class Par Speed Figures & Winning Times (`EN`)](https://www.gldracing.com/stats/class-pars)
- [Track Bias & Rail Geometry Statistics (`EN`)](https://www.gldracing.com/stats/track-bias)
- [Track Going & Surface Moisture Impact (`EN`)](https://www.gldracing.com/stats/going-impact)
- [クラス別基準タイム＆スピード指数 (`JA`)](https://www.gldracing.com/ja/stats/class-pars)
- [枠順・コース形態バイアス統計 (`JA`)](https://www.gldracing.com/ja/stats/track-bias)
- [馬場状態・ダート含水率スピード補正 (`JA`)](https://www.gldracing.com/ja/stats/going-impact)
- [등급별 기준기록 및 스피드 지수 표준 (`KO`)](https://www.gldracing.com/ko/stats/class-pars)
- [트랙 바이어스 및 게이트 유불리 통계 (`KO`)](https://www.gldracing.com/ko/stats/track-bias)
- [마장상태 및 모래주로 함수율 보정 데이터 (`KO`)](https://www.gldracing.com/ko/stats/going-impact)
- [國際賽馬各班標準時間與速勢基準 (`ZH-HK`)](https://www.gldracing.com/zh/stats/class-pars)
- [跑道偏差與移欄幾何統計 (`ZH-HK`)](https://www.gldracing.com/zh/stats/track-bias)
- [場地掛牌與含水量速度影響 (`ZH-HK`)](https://www.gldracing.com/zh/stats/going-impact)

## Regional Hubs & Track Guides

- [Japan Racing Hub (`EN`)](https://www.gldracing.com/japan-racing) | [日本競馬総合ハブ (`JA`)](https://www.gldracing.com/ja)
- [JRA Central Course Guide (`EN`)](https://www.gldracing.com/japan/jra) | [JRA中央競馬コース攻略 (`JA`)](https://www.gldracing.com/ja/jra)
- [NAR Regional Dirt & Ohi Guide (`EN`)](https://www.gldracing.com/japan/nar-dirt) | [地方競馬ダート攻略・大井 (`JA`)](https://www.gldracing.com/ja/nar-dirt)
- [Hong Kong Racing Hub (`EN`)](https://www.gldracing.com/hk) | [香港賽馬中心 (`ZH-HK`)](https://www.gldracing.com/zh)
- [Sha Tin Racecourse Guide (`EN`)](https://www.gldracing.com/hk/sha-tin) | [沙田馬場攻略 (`ZH-HK`)](https://www.gldracing.com/zh/sha-tin)
- [Happy Valley Night Racing Guide (`EN`)](https://www.gldracing.com/hk/happy-valley) | [跑馬地夜賽攻略 (`ZH-HK`)](https://www.gldracing.com/zh/happy-valley)
- [Korea Racing Hub (`EN`)](https://www.gldracing.com/korea-racing) | [한국경마 데이터 허브 (`KO`)](https://www.gldracing.com/ko)
- [Seoul Race Park Guide (`EN`)](https://www.gldracing.com/korea/seoul) | [서울경마장 가이드 (`KO`)](https://www.gldracing.com/ko/seoul)
- [Busan-Gyeongnam Race Park Guide (`EN`)](https://www.gldracing.com/korea/busan) | [부산경남경마장 가이드 (`KO`)](https://www.gldracing.com/ko/busan)
- [Korean Sand Moisture (`함수율`) Guide (`EN`)](https://www.gldracing.com/korea/handicapping-sand) | [한국 모래주로 함수율 가이드 (`KO`)](https://www.gldracing.com/ko/handicapping-sand)
- [Handicapping Manual & Methodology Guide](https://www.gldracing.com/guides)
- [Free Interactive Race 1 Demo](https://www.gldracing.com/preview)
- [Daily Race Previews & Strategy Articles](https://www.gldracing.com/articles)