Official NHA Assessment
Race 1: MATCHWINNER MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Blazing Sky
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
5 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Blazing Sky 3 57.5 1 0.00 1.5 56 56 56 +0 2 Matilda Fitzwalter 2 54.5 2 3.00 0.5 - 52 52 +52 3 Head And Heart 2 57.0 3 5.00 0.5 - 57 57 +57 4 Firefly Lane 2 54.5 4 21.00 0.5 - 52 52 +52 5 Guns Of War 3 60.0 5 21.05 1.5 - 61 61 +61 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Blazing Sky Line | 56 | 46 | 56 | -10 | 1.5 | ||
| 2 | Matilda Fitzwalter | - | - | 52 | -52 | 0.5 | - | |
| 3 | Head And Heart | - | 48 | 57 | -9 | 0.5 | - | |
| 4 | Firefly Lane | - | 44 | 52 | -8 | 0.5 | - | |
| 5 | Guns Of War | - | - | 61 | -61 | 1.5 | - |
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