Official NHA Assessment
Race 8: NEXT VAAL RACEMEETING THURSDAY 25 MAY MIDDLE STAKES (For horses with nett rating of 101 and below)
Line Horse
Calibre Crest
Reference for assessment
Exact Matches
0 / 17
Calculated = Official
Close Matches
1 / 17
Within 2 points
Significant Diffs
11 / 17
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Zuzan 3 52.0 1 0.00 1.5 79 77 77 -2 2 Calibre Crest 3 52.0 2 1.10 1.5 81 81 81 +0 3 Whispers Of War (AU 7 56.0 3 3.50 0.0 86 89 89 +3 4 Kinky Boots 3 52.0 4 3.75 1.5 88 78 78 -10 5 Pewter Sky 3 50.0 5 4.50 1.5 75 73 73 -2 6 Willow Express 7 60.0 6 5.00 0.0 97 96 96 -1 7 The Kop 4 55.5 7 5.10 0.5 91 86 86 -5 8 Kayla's Champ 5 54.5 8 7.25 0.0 87 85 85 -2 9 Bey Suyay 4 58.0 9 7.30 0.5 90 91 91 +1 10 Stormy Winter 8 56.0 10 8.25 0.0 86 88 88 +2 11 Cian The Conqueror 5 54.0 11 9.50 0.0 87 84 84 -3 12 Mardi Gras 7 59.5 12 9.75 0.0 98 95 95 -3 13 Norton Sound 4 62.0 13 99.99 0.5 98 99 99 +1 99 Bard Of Avon 3 60.0 99 0.00 1.5 - 93 93 +0 99 River Queraress 2 58.0 99 0.00 0.0 - 92 92 +0 99 Duke Of Sussex 4 62.0 99 0.00 0.5 - 99 99 +0 99 Ikigai 8 60.0 99 0.00 0.0 - 96 96 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Zuzan | 79 | 98 | 77 | +21 | 1.5 | - | |
| 2 | Calibre Crest Line | 81 | 74 | 81 | -7 | 1.5 | ||
| 3 | Whispers Of War (AUS) | 86 | 64 | 89 | -25 | 0.0 | - | |
| 4 | Kinky Boots | 88 | 74 | 78 | -4 | 1.5 | - | |
| 5 | Pewter Sky | 75 | 71 | 73 | -2 | 1.5 | - | |
| 6 | Willow Express | 97 | 82 | 96 | -14 | 0.0 | - | |
| 7 | The Kop | 91 | 78 | 86 | -8 | 0.5 | - | |
| 8 | Kayla's Champ | 87 | 77 | 85 | -8 | 0.0 | - | |
| 9 | Bey Suyay | 90 | 84 | 91 | -7 | 0.5 | - | |
| 10 | Stormy Winter | 86 | 69 | 88 | -19 | 0.0 | - | |
| 11 | Cian The Conqueror | 87 | 81 | 84 | -3 | 0.0 | - | |
| 12 | Mardi Gras | 98 | 83 | 95 | -12 | 0.0 | - | |
| 13 | Norton Sound | 98 | 85 | 99 | -14 | 0.5 | - | |
| 99 | Bard Of Avon | - | 105 | 93 | +12 | 1.5 | - | |
| 99 | River Queraress | - | 88 | 92 | -4 | 0.0 | - | |
| 99 | Duke Of Sussex | - | 96 | 99 | -3 | 0.5 | - | |
| 99 | Ikigai | - | 91 | 96 | -5 | 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