Official NHA Assessment
Race 8: WWW.TAB4RACING.COM MIDDLE STAKES (For horses with nett rating of 105 and below)
Line Horse
One Fell Swoop
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
5 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Mercantour 5 62.0 1 0.00 0.0 104 111 110 +6 2 Minogue 4 60.5 2 0.40 5.0 102 98 98 -4 3 One Fell Swoop 2 60.5 3 0.60 3.0 102 102 102 +0 4 Francilien 2 52.5 4 1.40 3.0 92 86 86 -6 5 Silver Tudor 5 58.0 5 2.90 0.0 97 103 103 +6 6 Open Highway 4 52.0 6 3.30 5.0 84 81 81 -3 7 Richard The First 2 58.0 7 5.80 3.0 94 97 97 +3 8 Passage Of Power 6 56.5 8 6.30 0.0 95 100 100 +5 9 Nettleton 3 58.5 9 18.50 4.5 100 95 95 -5 99 Tsar Bomba 3 58.0 99 0.00 4.5 - 94 94 +0 99 Ensuing 2 54.0 99 0.00 3.0 - 89 89 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Mercantour | 104 | 113 | 110 | +3 | 0.0 | - | |
| 2 | Minogue | 102 | 112 | 98 | +14 | 5.0 | - | |
| 3 | One Fell Swoop Line | 102 | 97 | 102 | -5 | 3.0 | ||
| 4 | Francilien | 92 | 94 | 86 | +8 | 3.0 | - | |
| 5 | Silver Tudor | 97 | 99 | 103 | -4 | 0.0 | - | |
| 6 | Open Highway | 84 | 94 | 81 | +13 | 5.0 | - | |
| 7 | Richard The First | 94 | 87 | 97 | -10 | 3.0 | - | |
| 8 | Passage Of Power | 95 | 76 | 100 | -24 | 0.0 | - | |
| 9 | Nettleton | 100 | 100 | 95 | +5 | 4.5 | - | |
| 99 | Tsar Bomba | - | 91 | 94 | -3 | 4.5 | - | |
| 99 | Ensuing | - | 87 | 89 | -2 | 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