Official NHA Assessment
Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Cool Reggae
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
2 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Blood Of Eden 2 60.0 1 0.00 0.0 71 62 62 -9 2 Vixeninthevineyard 2 60.0 2 0.30 0.0 65 67 67 +2 3 Cool Reggae 4 60.0 3 2.00 2.0 61 61 61 +0 4 Villarrica 3 60.0 4 7.75 4.5 50 53 53 +3 5 Twelfth Of Never 2 60.0 5 11.75 0.0 74 62 64 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Blood Of Eden | 71 | 74 | 62 | +12 | 0.0 | - | |
| 2 | Vixeninthevineyard | 65 | 64 | 67 | -3 | 0.0 | - | |
| 3 | Cool Reggae Line | 61 | 64 | 61 | +3 | 2.0 | ||
| 4 | Villarrica | 50 | 58 | 53 | +5 | 4.5 | - | |
| 5 | Twelfth Of Never | 74 | 74 | 64 | +10 | 0.0 | - |
Assessment Methodology
Calculation Steps:
- Identify Line Horse - consistent performer used as reference
- Calculate WFA Allowance based on age, distance, and month
- Apply Drag Adjustment for beaten margin
- Calculate Actual Weight Performance:
Weight - Drag - WFA - Compare to Line Horse to determine race rating
- Apply special rules (maiden caps, layoff allowance)
Key Formulas:
- Drag Effect: Varies by distance (see Benchmarks page)
- 1 length ≈ 1kg at 1 mile (1600m)
- WFA Scale: Based on Admiral Rous's 1855 table
- Rating Points: 1kg = 2 rating points