Official NHA Assessment
Race 6: GLISTIAN EVENTS MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)
Line Horse
Witching Hour
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Special Star 2 56.0 1 0.00 0.0 - 76 6 +6 2 Witching Hour 2 56.0 2 2.40 0.0 78 78 78 +0 3 Amazon Queen 3 56.0 3 3.20 9.5 - 59 59 +59 4 Sapphire Sun 2 56.0 4 6.30 0.0 73 76 76 +3 5 Madame Pompadour 2 60.0 5 12.55 0.0 59 84 84 +25 6 Hubertus Hunt 2 56.0 6 19.05 0.0 61 76 76 +15 7 Lady Lancaster 3 60.0 7 19.55 9.5 - 65 65 +65 99 Rejuvenate 2 56.0 99 0.00 0.0 - 76 76 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Special Star | - | 82 | 6 | +76 | 0.0 | - | |
| 2 | Witching Hour Line | 78 | 68 | 78 | -10 | 0.0 | ||
| 3 | Amazon Queen | - | 81 | 59 | +22 | 9.5 | - | |
| 4 | Sapphire Sun | 73 | 71 | 76 | -5 | 0.0 | - | |
| 5 | Madame Pompadour | 59 | 56 | 84 | -28 | 0.0 | - | |
| 6 | Hubertus Hunt | 61 | 75 | 76 | -1 | 0.0 | - | |
| 7 | Lady Lancaster | - | 53 | 65 | -12 | 9.5 | - | |
| 99 | Rejuvenate | - | 79 | 76 | +3 | 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