Official NHA Assessment
Race 7: TAB COLORADO KING STAKES (Grade 2) (Horses at Weight for Age + Penalties)
Line Horse
The Ultimate King
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
5 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Fire Attack 3 60.0 1 0.00 3.5 124 115 115 -9 2 Choisaanada 2 58.0 2 0.60 0.0 121 125 125 +4 3 The Ultimate King 3 58.0 3 0.80 3.5 117 117 117 +0 4 Copper Eagle 2 54.5 4 1.05 0.0 97 117 117 +20 5 Field Marshal 3 58.0 5 1.25 3.5 110 117 117 +7 6 Atticus Finch 5 59.0 6 5.75 0.0 127 120 120 -7 99 Bakwena 3 55.5 99 0.00 3.5 - 106 106 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Fire Attack | 124 | 124 | 115 | +9 | 3.5 | - | |
| 2 | Choisaanada | 121 | 121 | 125 | -4 | 0.0 | - | |
| 3 | The Ultimate King Line | 117 | 117 | 117 | ✓ Match | 3.5 | ||
| 4 | Copper Eagle | 97 | 110 | 117 | -7 | 0.0 | - | |
| 5 | Field Marshal | 110 | 110 | 117 | -7 | 3.5 | - | |
| 6 | Atticus Finch | 127 | 127 | 120 | +7 | 0.0 | - | |
| 99 | Bakwena | - | 97 | 106 | -9 | 3.5 | - |
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