Official NHA Assessment
Race 4: FUTURA PINNACLE STAKES (F & M) (For Fillies and Mares)
Line Horse
Marmalisa
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
2 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Zarina 4 61.0 1 0.00 2.5 119 107 107 -12 2 Queen Of Shadows 3 52.0 2 1.25 5.0 94 88 88 -6 3 Marmalisa 4 55.0 3 2.50 2.5 97 97 97 +0 4 Maria Querol 3 53.5 4 5.00 5.0 101 87 91 -10 5 Really Royal 4 56.5 5 8.00 2.5 103 98 98 -5 99 Silver Sabre 5 52.0 99 0.00 0.0 - 94 94 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Zarina | 119 | 111 | 107 | +4 | 2.5 | - | |
| 2 | Queen Of Shadows | 94 | 95 | 88 | +7 | 5.0 | - | |
| 3 | Marmalisa Line | 97 | 90 | 97 | -7 | 2.5 | ||
| 4 | Maria Querol | 101 | 96 | 91 | +5 | 5.0 | - | |
| 5 | Really Royal | 103 | 101 | 98 | +3 | 2.5 | - | |
| 99 | Silver Sabre | - | 93 | 94 | -1 | 0.0 | - |
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