Official NHA Assessment
Race 6: RACEHORSE OWNERS ASSOCIATION MR 72 HANDICAP (Open)
Line Horse
Silver Celebrity
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
11 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Homer Fidget 4 57.5 1 0.00 1.0 67 65 67 +0 2 Marsh Marigold 3 61.5 2 0.05 2.5 80 70 70 -10 3 Sparkling Flame 3 55.5 3 1.55 2.5 67 61 61 -6 4 Silver Celebrity 4 50.5 4 2.05 1.0 54 54 54 +0 5 Amberglo Star 5 52.0 5 3.30 0.0 56 57 57 +1 6 Jaquar Cat 3 52.5 6 3.80 2.5 62 53 53 -9 7 Light Without 4 53.5 7 3.85 1.0 59 58 58 -1 8 Augusta Green 3 55.5 8 4.10 2.5 67 59 59 -8 9 Willo'thewisp 5 50.5 9 6.10 0.0 54 53 53 -1 10 A Thousand Tunes 4 57.0 10 6.35 1.0 66 64 64 -2 11 Take The World 5 59.0 11 7.10 0.0 70 70 70 +0 12 The Gaul 5 52.5 12 7.35 0.0 52 57 57 +5 13 Chauels Camelot 4 52.5 13 8.85 1.0 57 55 55 -2 14 Secret Link 3 60.0 14 11.10 2.5 77 67 67 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Homer Fidget | 67 | 55 | 67 | -12 | 1.0 | - | |
| 2 | Marsh Marigold | 80 | 79 | 70 | +9 | 2.5 | - | |
| 3 | Sparkling Flame | 67 | 59 | 61 | -2 | 2.5 | - | |
| 4 | Silver Celebrity Line | 54 | 46 | 54 | -8 | 1.0 | ||
| 5 | Amberglo Star | 56 | 50 | 57 | -7 | 0.0 | - | |
| 6 | Jaquar Cat | 62 | 46 | 53 | -7 | 2.5 | - | |
| 7 | Light Without | 59 | 71 | 58 | +13 | 1.0 | - | |
| 8 | Augusta Green | 67 | 61 | 59 | +2 | 2.5 | - | |
| 9 | Willo'thewisp | 54 | 46 | 53 | -7 | 0.0 | - | |
| 10 | A Thousand Tunes | 66 | 52 | 64 | -12 | 1.0 | - | |
| 11 | Take The World | 70 | 55 | 70 | -15 | 0.0 | - | |
| 12 | The Gaul | 52 | 47 | 57 | -10 | 0.0 | - | |
| 13 | Chauels Camelot | 57 | 53 | 55 | -2 | 1.0 | - | |
| 14 | Secret Link | 77 | 52 | 67 | -15 | 2.5 | - |
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