Official NHA Assessment
Race 7: RACEHORSE OWNERS ASSOCIATION SPOOK EXPRESS STAKES (Listed) (Fillies and Mares)
Line Horse
Un Deux Trois
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
5 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Opera Glass 4 56.0 1 0.00 1.5 90 84 84 -6 2 Aryaam 4 50.0 2 0.70 1.5 75 78 78 +3 3 Ontheverge 3 50.0 3 0.75 4.5 77 71 71 -6 4 Smoking Hot 5 62.0 4 1.75 0.0 101 103 103 +2 5 Un Deux Trois 4 54.0 5 1.85 1.5 84 84 84 +0 6 Quiet Rebellion 3 50.0 6 2.00 4.5 77 70 70 -7 7 La Luvia 4 56.0 7 3.25 1.5 89 87 87 -2 8 Pomander 5 54.0 8 4.00 0.0 83 85 85 +2 9 Western Dance 6 50.0 9 4.20 0.0 65 77 77 +12 10 She's A Cracker 5 52.0 10 4.25 0.0 76 81 81 +5 11 Zazu 6 50.5 11 5.00 0.0 71 76 76 +5 12 Saffron Rain 3 50.0 12 12.00 4.5 59 66 66 +7 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Opera Glass | 90 | 81 | 84 | -3 | 1.5 | - | |
| 2 | Aryaam | 75 | 71 | 78 | -7 | 1.5 | - | |
| 3 | Ontheverge | 77 | 73 | 71 | +2 | 4.5 | - | |
| 4 | Smoking Hot | 101 | 99 | 103 | -4 | 0.0 | - | |
| 5 | Un Deux Trois Line | 84 | 84 | 84 | ✓ Match | 1.5 | ||
| 6 | Quiet Rebellion | 77 | 74 | 70 | +4 | 4.5 | - | |
| 7 | La Luvia | 89 | 71 | 87 | -16 | 1.5 | - | |
| 8 | Pomander | 83 | 83 | 85 | -2 | 0.0 | - | |
| 9 | Western Dance | 65 | 60 | 77 | -17 | 0.0 | - | |
| 10 | She's A Cracker | 76 | 73 | 81 | -8 | 0.0 | - | |
| 11 | Zazu | 71 | 71 | 76 | -5 | 0.0 | - | |
| 12 | Saffron Rain | 59 | 56 | 66 | -10 | 4.5 | - |
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