Official NHA Assessment
Race 1: MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Cha Vez
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
5 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Albar Warning 3 60.0 1 0.00 3.0 40 48 46 +6 2 Walker Bay 3 60.0 2 0.50 3.0 - 48 48 +48 3 Cha Vez 3 60.0 3 0.75 3.0 48 48 48 +0 4 Cario 4 60.0 4 2.00 3.5 - 47 47 +47 5 Windsor Lane (ZIM) 4 53.5 5 2.10 3.5 - 34 34 +34 6 Royal Obsession 3 57.5 6 5.60 3.0 - 43 43 +43 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Albar Warning | 40 | 48 | 46 | +2 | 3.0 | - | |
| 2 | Walker Bay | - | 59 | 48 | +11 | 3.0 | - | |
| 3 | Cha Vez Line | 48 | 55 | 48 | +7 | 3.0 | ||
| 4 | Cario | - | 41 | 47 | -6 | 3.5 | - | |
| 5 | Windsor Lane (ZIM) | - | 49 | 34 | +15 | 3.5 | - | |
| 6 | Royal Obsession | - | 37 | 43 | -6 | 3.0 | - |
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