Official NHA Assessment
Race 2: KM RACING STABLES MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
La Pequenita
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
4 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 La Pequenita 3 60.0 1 0.00 9.0 63 63 63 +0 2 Vintage Crystal 2 60.0 2 1.25 0.0 60 85 85 +25 3 Sundrop 6 58.5 3 3.75 0.0 53 79 79 +26 4 Accumulate 4 60.0 4 7.50 7.0 56 67 67 +11 5 Double Trade 2 57.0 5 16.25 0.0 70 75 75 +5 99 Tartan Queen 2 54.5 99 0.00 0.0 - 70 70 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | La Pequenita Line | 63 | 62 | 63 | -1 | 9.0 | ||
| 2 | Vintage Crystal | 60 | 59 | 85 | -26 | 0.0 | - | |
| 3 | Sundrop | 53 | 48 | 79 | -31 | 0.0 | - | |
| 4 | Accumulate | 56 | 50 | 67 | -17 | 7.0 | - | |
| 5 | Double Trade | 70 | 67 | 75 | -8 | 0.0 | - | |
| 99 | Tartan Queen | - | 70 | 70 | ✓ Match | 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