Official NHA Assessment
Race 2: MS SIBUSISIWE P BANGO PINNACLE PLATE (75) (Race for all horses)
Line Horse
Bruce's Spirit
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
1 / 5
Within 2 points
Significant Diffs
2 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Karvani 7 60.0 1 0.00 0.0 75 69 69 -6 2 Bruce's Spirit 6 57.0 2 1.50 0.0 66 66 66 +0 3 Prince Of Denmark 4 55.5 3 2.75 2.0 60 58 58 -2 4 New Galaxy 4 51.0 4 27.75 2.0 58 47 48 -10 5 Cutback 6 55.5 5 99.99 0.0 73 60 63 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Karvani | 75 | 73 | 69 | +4 | 0.0 | - | |
| 2 | Bruce's Spirit Line | 66 | 55 | 66 | -11 | 0.0 | ||
| 3 | Prince Of Denmark | 60 | 51 | 58 | -7 | 2.0 | - | |
| 4 | New Galaxy | 58 | 45 | 48 | -3 | 2.0 | - | |
| 5 | Cutback | 73 | 63 | 63 | ✓ 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