Official NHA Assessment
Race 1: TAB PRETTY POLLY STAKES (Grade 3) (For 2 yof R100 000 Win BSA / CRS Bonus)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
6 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 One Fine Winter 2 58.0 1 0.00 2.0 - - - +0 2 Jingleberry 2 58.0 2 4.50 2.0 - - - +0 3 Tina Lovelace 2 58.0 3 4.60 2.0 - - - +0 4 Malibu 2 58.0 4 5.00 2.0 - - - +0 5 Glastonbury 2 60.0 5 5.90 2.0 - - - +0 6 Red Caramel 2 55.0 6 23.00 2.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | One Fine Winter | - | 105 | - | +105 | 2.0 | - | |
| 2 | Jingleberry | - | 95 | - | +95 | 2.0 | - | |
| 3 | Tina Lovelace | - | 95 | - | +95 | 2.0 | - | |
| 4 | Malibu | - | 92 | - | +92 | 2.0 | - | |
| 5 | Glastonbury | - | 94 | - | +94 | 2.0 | - | |
| 6 | Red Caramel | - | 72 | - | +72 | 2.0 | - |
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