Official NHA Assessment
Race 1: JOIN THE MTC MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Zambezi Sunset
Reference for assessment
Exact Matches
1 / 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 Ultra Pursuit 3 60.0 1 0.00 8.0 - 44 6 +6 2 Winchester 2 60.0 2 2.00 0.0 81 63 71 -10 3 Zambezi Sunset 2 60.0 3 7.00 0.0 60 60 60 +0 4 Exodus Song 2 59.0 4 7.50 0.0 51 58 58 +7 99 Head And Heart 2 60.0 99 0.00 0.0 - 60 60 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Ultra Pursuit | - | 78 | 6 | +72 | 8.0 | - | |
| 2 | Winchester | 81 | 69 | 71 | -2 | 0.0 | - | |
| 3 | Zambezi Sunset Line | 60 | 60 | 60 | ✓ Match | 0.0 | ||
| 4 | Exodus Song | 51 | 43 | 58 | -15 | 0.0 | - | |
| 99 | Head And Heart | - | 48 | 60 | -12 | 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