Official NHA Assessment
Race 1: 4RACING WELCOMES YOU MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA / CRS Bonus)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Augusta Rosso 2 60.0 1 0.00 2.0 - - - +0 2 You're So Special 2 60.0 2 1.00 2.0 - - - +0 3 Olive Oyl 2 60.0 3 1.25 2.0 - - - +0 4 Jet Set Run 2 60.0 4 4.50 2.0 - - - +0 5 Red Lhasa 2 60.0 5 5.00 2.0 - - - +0 6 Buddleja 2 60.0 6 24.25 2.0 - - - +0 7 San Gimignano 2 60.0 7 34.75 2.0 - - - +0 99 Darlingbudsofmay 2 60.0 99 0.00 2.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Augusta Rosso | - | 86 | - | +86 | 2.0 | - | |
| 2 | You're So Special | - | 83 | - | +83 | 2.0 | - | |
| 3 | Olive Oyl | - | 77 | - | +77 | 2.0 | - | |
| 4 | Jet Set Run | - | 80 | - | +80 | 2.0 | - | |
| 5 | Red Lhasa | - | 63 | - | +63 | 2.0 | - | |
| 6 | Buddleja | - | 59 | - | +59 | 2.0 | - | |
| 7 | San Gimignano | - | 44 | - | +44 | 2.0 | - | |
| 99 | Darlingbudsofmay | - | 70 | - | - | 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