Official NHA Assessment
Race 2: CLASSIFIED STAKES (For horses with nett rating of 71 and below)
Line Horse
Bella Noir
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
3 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Oden 6 60.0 1 0.00 0.0 68 86 74 +6 2 Val Gardena 5 50.0 2 0.50 0.0 50 66 66 +16 3 Bella Noir 4 57.5 3 4.00 6.0 69 69 69 +0 4 In Good Time 5 57.5 4 4.25 0.0 71 81 81 +10 5 Hawi 4 48.0 5 9.25 6.0 54 50 50 -4 6 Viscountess Vivien 6 54.0 6 17.25 0.0 63 74 74 +11 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Oden | 68 | 88 | 74 | +14 | 0.0 | - | |
| 2 | Val Gardena | 50 | 39 | 66 | -27 | 0.0 | - | |
| 3 | Bella Noir Line | 69 | 66 | 69 | -3 | 6.0 | ||
| 4 | In Good Time | 71 | 71 | 81 | -10 | 0.0 | - | |
| 5 | Hawi | 54 | 47 | 50 | -3 | 6.0 | - | |
| 6 | Viscountess Vivien | 63 | 72 | 74 | -2 | 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