Official NHA Assessment
Race 1: MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Elmhurst
Reference for assessment
Exact Matches
0 / 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 Walking Thru Time 3 57.0 1 0.00 3.0 50 43 43 -7 2 Elmhurst 2 60.0 2 5.00 0.0 55 55 55 +0 3 Kallipos 3 60.0 3 29.00 3.0 - 49 49 +49 4 Etsa Moralo 3 60.0 4 99.99 3.0 36 49 49 +13 99 My Secret Place 5 57.0 99 0.00 0.0 - 49 49 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Walking Thru Time | 50 | 73 | 43 | +30 | 3.0 | - | |
| 2 | Elmhurst Line | 55 | 56 | 55 | +1 | 0.0 | ||
| 3 | Kallipos | - | 63 | 49 | +14 | 3.0 | - | |
| 4 | Etsa Moralo | 36 | 36 | 49 | -13 | 3.0 | - | |
| 99 | My Secret Place | - | 71 | 49 | +22 | 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