Official NHA Assessment
Race 6: BSA HACHIMAN SPRINT (Open/ 4th Leg Sprinter Series)
Line Horse
Star Aglow
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 Jubilee 7 60.0 1 0.00 0.0 87 97 93 +6 2 Admirals Chance 5 58.5 2 1.00 0.0 84 94 94 +10 3 Star Aglow 3 55.0 3 2.50 5.0 77 77 77 +0 4 Emerald Floe 4 58.5 4 3.50 6.0 84 82 82 -2 5 Tradition 4 58.5 5 3.60 6.0 84 82 82 -2 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Jubilee | 87 | 72 | 93 | -21 | 0.0 | - | |
| 2 | Admirals Chance | 84 | 77 | 94 | -17 | 0.0 | - | |
| 3 | Star Aglow Line | 77 | 74 | 77 | -3 | 5.0 | ||
| 4 | Emerald Floe | 84 | 82 | 82 | ✓ Match | 6.0 | - | |
| 5 | Tradition | 84 | 77 | 82 | -5 | 6.0 | - |
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