Official NHA Assessment
Race 5: RACEHORSE OWNERS ASSOCIATION MR 80 HANDICAP (Open)
Line Horse
Fifth Of July
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Elusive Swann 4 60.0 1 0.00 0.5 80 72 80 +0 2 Fifth Of July 5 58.5 2 0.50 0.0 77 77 77 +0 3 Vengeance Forever 3 54.0 3 1.20 1.5 70 64 64 -6 4 Spin Doctor 3 58.5 4 1.60 1.5 80 72 72 -8 5 Banha Bridge 5 54.0 5 1.95 0.0 68 66 66 -2 6 Afraad 8 60.5 6 2.00 0.0 81 79 79 -2 7 Great Affair 7 61.5 7 3.45 0.0 83 79 79 -4 8 The Brief 3 54.5 8 3.50 1.5 72 62 62 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Elusive Swann | 80 | 72 | 80 | -8 | 0.5 | - | |
| 2 | Fifth Of July Line | 77 | 63 | 77 | -14 | 0.0 | ||
| 3 | Vengeance Forever | 70 | 51 | 64 | -13 | 1.5 | - | |
| 4 | Spin Doctor | 80 | 90 | 72 | +18 | 1.5 | - | |
| 5 | Banha Bridge | 68 | 70 | 66 | +4 | 0.0 | - | |
| 6 | Afraad | 81 | 79 | 79 | ✓ Match | 0.0 | - | |
| 7 | Great Affair | 83 | 63 | 79 | -16 | 0.0 | - | |
| 8 | The Brief | 72 | 90 | 62 | +28 | 1.5 | - |
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