Official NHA Assessment
Race 5: BSA NOVEMBER TWO YEAR OLD SALE MERIT RATED 94 HANDICAP (Open)
Line Horse
Admirals Chance
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
1 / 5
Within 2 points
Significant Diffs
3 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Abayyaan 3 58.5 1 0.00 6.0 91 79 91 +0 2 Admirals Chance 5 55.0 2 5.00 0.0 84 84 84 +0 3 Jubilee 7 57.5 3 9.00 0.0 89 89 89 +0 4 Wantage 8 60.0 4 9.05 0.0 94 94 94 +0 5 Only Him 4 60.0 5 14.05 3.0 94 88 88 -6 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Abayyaan | 91 | 94 | 91 | +3 | 6.0 | - | |
| 2 | Admirals Chance Line | 84 | 77 | 84 | -7 | 0.0 | ||
| 3 | Jubilee | 89 | 72 | 89 | -17 | 0.0 | - | |
| 4 | Wantage | 94 | 78 | 94 | -16 | 0.0 | - | |
| 5 | Only Him | 94 | 87 | 88 | -1 | 3.0 | - |
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