Official NHA Assessment
Race 3: CLASSIFIED STAKES (For horses with nett rating of 77 and below)
Line Horse
Red Top
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
3 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Red Top 5 60.0 1 0.00 0.0 76 76 76 +0 2 Forever Royal 4 50.0 2 2.00 2.5 45 51 51 +6 3 The Octagon 2 60.0 3 5.00 1.0 76 74 74 -2 4 Audacious 2 53.0 4 10.00 1.0 70 60 60 -10 99 Blazing Sky 3 50.0 99 0.00 2.0 - 52 52 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Red Top Line | 76 | 70 | 76 | -6 | 0.0 | ||
| 2 | Forever Royal | 45 | 36 | 51 | -15 | 2.5 | - | |
| 3 | The Octagon | 76 | 76 | 74 | +2 | 1.0 | - | |
| 4 | Audacious | 70 | 61 | 60 | +1 | 1.0 | - | |
| 99 | Blazing Sky | - | 46 | 52 | -6 | 2.0 | - |
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