Official NHA Assessment
Race 4: www.tabgold.co.za FM 92 HANDICAP (F & M) (For Fillies and Mares)
Line Horse
Lady Legend
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Meet At The George 5 58.5 1 0.00 0.0 89 92 89 +0 2 Lady Legend 5 58.0 2 0.15 0.0 91 91 91 +0 2 Sashay Away 3 60.5 2 0.15 8.0 94 80 84 -10 4 Magical Flight 4 54.5 4 2.55 5.0 81 76 76 -5 5 Purple Nkanyezi 5 60.0 5 2.70 0.0 92 97 97 +5 6 Louis' Diamond 3 55.5 6 10.50 8.0 84 70 74 -10 99 Chanty Lane 4 57.5 99 0.00 5.0 - 80 80 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Meet At The George | 89 | 89 | 89 | ✓ Match | 0.0 | - | |
| 2 | Lady Legend Line | 91 | 92 | 91 | +1 | 0.0 | ||
| 2 | Sashay Away | 94 | 88 | 84 | +4 | 8.0 | - | |
| 4 | Magical Flight | 81 | 85 | 76 | +9 | 5.0 | - | |
| 5 | Purple Nkanyezi | 92 | 80 | 97 | -17 | 0.0 | - | |
| 6 | Louis' Diamond | 84 | 58 | 74 | -16 | 8.0 | - | |
| 99 | Chanty Lane | - | 83 | 80 | +3 | 5.0 | - |
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