Official NHA Assessment
Race 1: MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Follow The Band
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 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 Pair Of Aces 4 60.0 1 0.00 3.5 - 52 6 +6 2 Follow The Band 2 60.0 2 0.75 0.0 63 63 63 +0 3 I Got The Secret 3 58.5 3 13.75 6.0 25 44 44 +19 4 Trust Me 2 57.5 4 14.75 0.0 - 54 54 +54 5 Jumped A Red 2 57.5 5 24.75 0.0 52 54 54 +2 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Pair Of Aces | - | 39 | 6 | +33 | 3.5 | - | |
| 2 | Follow The Band Line | 63 | 53 | 63 | -10 | 0.0 | ||
| 3 | I Got The Secret | 25 | 21 | 44 | -23 | 6.0 | - | |
| 4 | Trust Me | - | 51 | 54 | -3 | 0.0 | - | |
| 5 | Jumped A Red | 52 | 42 | 54 | -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