Official NHA Assessment
Race 1: MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Lion's Share
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
1 / 5
Within 2 points
Significant Diffs
4 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 House Of Lords 3 60.0 1 0.00 2.0 45 49 49 +4 2 Blazing Sky 3 57.0 2 0.25 2.0 62 43 52 -10 3 Lion's Share 3 60.0 3 0.75 2.0 53 53 53 +0 4 Philosopher King 3 60.0 4 99.00 2.0 - 49 49 +49 99 What's Her Name 3 57.0 99 0.00 2.0 - 43 43 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | House Of Lords | 45 | 49 | 49 | ✓ Match | 2.0 | - | |
| 2 | Blazing Sky | 62 | 46 | 52 | -6 | 2.0 | - | |
| 3 | Lion's Share Line | 53 | 43 | 53 | -10 | 2.0 | ||
| 4 | Philosopher King | - | - | 49 | -49 | 2.0 | - | |
| 99 | What's Her Name | - | - | 43 | -43 | 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