Official NHA Assessment
Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (3-year-olds) (For Maiden 3 year-olds)
Line Horse
Master Forester
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Master Forester 3 60.0 1 0.00 10.5 77 77 77 +0 2 Nikes Ray Of Light 3 60.0 2 0.50 10.5 75 77 77 +2 3 Kohana 2 60.0 3 2.25 7.0 - 84 84 +84 4 Prince Antonio 3 60.0 4 8.00 10.5 - 77 77 +77 5 Just For U 2 57.5 5 11.75 7.0 - 79 79 +79 6 Burn Bright 3 57.5 6 16.25 10.5 - 72 72 +72 7 Very Var Var 2 57.5 7 20.75 7.0 - 79 79 +79 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Master Forester Line | 77 | 90 | 77 | +13 | 10.5 | ||
| 2 | Nikes Ray Of Light | 75 | 65 | 77 | -12 | 10.5 | - | |
| 3 | Kohana | - | 70 | 84 | -14 | 7.0 | - | |
| 4 | Prince Antonio | - | 63 | 77 | -14 | 10.5 | - | |
| 5 | Just For U | - | 68 | 79 | -11 | 7.0 | - | |
| 6 | Burn Bright | - | 68 | 72 | -4 | 10.5 | - | |
| 7 | Very Var Var | - | 48 | 79 | -31 | 7.0 | - |
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