Official NHA Assessment
Race 1: BONAMANZI MAIDEN JUVENILE PLATE (For 2 yo R60 000 Win BSA Bonus Series)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Vasilikos 2 60.0 1 0.00 1.5 - - - +0 2 Imposing 2 60.0 2 0.05 1.5 - - - +0 3 Hayat 2 60.0 3 0.95 1.5 - - - +0 4 Eddie The Mover 2 60.0 4 2.35 1.5 - - - +0 5 Zooberi 2 60.0 5 5.85 1.5 - - - +0 6 Enid's Girl 2 57.5 6 7.45 1.5 - - - +0 7 Arbitrator 2 60.0 7 10.45 1.5 - - - +0 8 Mutirikwi 2 60.0 8 11.05 1.5 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Vasilikos | - | 67 | - | +67 | 1.5 | - | |
| 2 | Imposing | - | 107 | - | +107 | 1.5 | - | |
| 3 | Hayat | - | 72 | - | +72 | 1.5 | - | |
| 4 | Eddie The Mover | - | 76 | - | +76 | 1.5 | - | |
| 5 | Zooberi | - | 78 | - | +78 | 1.5 | - | |
| 6 | Enid's Girl | - | 59 | - | +59 | 1.5 | - | |
| 7 | Arbitrator | - | 82 | - | +82 | 1.5 | - | |
| 8 | Mutirikwi | - | 64 | - | +64 | 1.5 | - |
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