Official NHA Assessment
Race 1: NOIC MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Head And Heart
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 Captain Carnage 2 60.0 1 0.00 5.5 60 - 60 +0 2 Zambezi Sunset 2 60.0 2 0.50 5.5 66 - 66 +0 3 Head And Heart 2 60.0 3 1.25 5.5 - - - +0 4 Firefly Lane 2 57.5 4 2.50 5.5 - -5 - +0 5 Exodus Song 2 58.5 5 11.50 5.5 51 -3 41 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Captain Carnage | 60 | 59 | 60 | -1 | 5.5 | - | |
| 2 | Zambezi Sunset | 66 | 60 | 66 | -6 | 5.5 | - | |
| 3 | Head And Heart Line | - | 48 | - | +48 | 5.5 | ||
| 4 | Firefly Lane | - | 44 | - | +44 | 5.5 | - | |
| 5 | Exodus Song | 51 | 43 | 41 | +2 | 5.5 | - |
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