Official NHA Assessment
Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Elusive Hunter
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Rain Bird 2 58.5 1 0.00 7.0 64 59 59 -5 2 Ice Cap 3 60.0 2 3.75 10.5 60 55 55 -5 3 Elusive Hunter 4 60.0 3 6.00 12.0 52 52 52 +0 4 Queen Ofthe Palace 2 60.0 4 7.25 7.0 59 62 62 +3 5 Fantasy Girl 2 58.0 5 8.75 7.0 71 58 61 -10 6 Stealingthethunder 2 60.0 6 8.80 7.0 48 62 62 +14 7 Gotcha Buzz 2 60.0 7 28.30 7.0 60 62 62 +2 99 Best Intentions 2 60.0 99 0.00 7.0 - 62 62 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Rain Bird | 64 | 70 | 59 | +11 | 7.0 | - | |
| 2 | Ice Cap | 60 | 54 | 55 | -1 | 10.5 | - | |
| 3 | Elusive Hunter Line | 52 | 50 | 52 | -2 | 12.0 | ||
| 4 | Queen Ofthe Palace | 59 | 56 | 62 | -6 | 7.0 | - | |
| 5 | Fantasy Girl | 71 | 58 | 61 | -3 | 7.0 | - | |
| 6 | Stealingthethunder | 48 | 47 | 62 | -15 | 7.0 | - | |
| 7 | Gotcha Buzz | 60 | 61 | 62 | -1 | 7.0 | - | |
| 99 | Best Intentions | - | 67 | 62 | +5 | 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