Official NHA Assessment
Race 1: MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
My Secret Place
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
5 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Prince Of Kimberly 3 60.0 1 0.00 7.5 - -10 - +0 2 My Secret Place 5 57.5 2 1.50 0.0 - - - +0 3 Montanna Bay 2 57.5 3 0.00 5.0 45 -10 35 -10 99 Jacky Sparrow 3 57.5 99 0.00 7.5 - -15 -15 +0 99 Blu 3 57.5 99 0.00 7.5 - -15 -15 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Prince Of Kimberly | - | 73 | - | +73 | 7.5 | - | |
| 2 | My Secret Place Line | - | 71 | - | +71 | 0.0 | ||
| 3 | Montanna Bay | 45 | 51 | 35 | +16 | 5.0 | - | |
| 99 | Jacky Sparrow | - | 80 | -15 | +95 | 7.5 | - | |
| 99 | Blu | - | - | -15 | +15 | 7.5 | - |
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