Official NHA Assessment
Race 2: GREYVILLE CONVENTION CENTRE CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 70)
Line Horse
Golden Angel
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
5 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Copacabana 4 60.5 1 0.00 3.0 71 75 75 +4 2 Golden Angel 3 59.5 2 0.70 5.0 74 74 74 +0 3 Futano 3 56.5 3 1.20 5.0 63 67 67 +4 4 K M V Retrofit 3 56.5 4 1.70 5.0 71 66 66 -5 5 Nile The Boss 4 52.0 5 2.30 3.0 52 60 60 +8 6 Blind Speed 2 59.5 6 2.90 0.0 69 81 81 +12 7 Fate Decreed 3 52.5 7 3.10 5.0 55 57 57 +2 8 Amafort 3 55.5 8 3.15 5.0 64 63 63 -1 9 Moving In 4 59.5 9 3.45 3.0 74 74 74 +0 10 Oh My Gucci Girl 3 56.5 10 4.15 5.0 63 64 64 +1 11 The Queen Bee 4 52.0 11 4.75 3.0 59 58 58 -1 99 Roy Taking Off 4 53.5 99 0.00 3.0 - 61 61 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Copacabana | 71 | 74 | 75 | -1 | 3.0 | - | |
| 2 | Golden Angel Line | 74 | 72 | 74 | -2 | 5.0 | ||
| 3 | Futano | 63 | 55 | 67 | -12 | 5.0 | - | |
| 4 | K M V Retrofit | 71 | 69 | 66 | +3 | 5.0 | - | |
| 5 | Nile The Boss | 52 | 52 | 60 | -8 | 3.0 | - | |
| 6 | Blind Speed | 69 | 65 | 81 | -16 | 0.0 | - | |
| 7 | Fate Decreed | 55 | 54 | 57 | -3 | 5.0 | - | |
| 8 | Amafort | 64 | 61 | 63 | -2 | 5.0 | - | |
| 9 | Moving In | 74 | 66 | 74 | -8 | 3.0 | - | |
| 10 | Oh My Gucci Girl | 63 | 62 | 64 | -2 | 5.0 | - | |
| 11 | The Queen Bee | 59 | 53 | 58 | -5 | 3.0 | - | |
| 99 | Roy Taking Off | - | 54 | 61 | -7 | 3.0 | - |
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