Official NHA Assessment
Race 2: BETWAY SUMMER CUP 25 NOVEMBER MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)
Line Horse
Phantom Express
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
0 / 15
Within 2 points
Significant Diffs
13 / 15
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Grape Shot 2 59.0 1 0.00 5.5 - 91 6 +6 2 Phantom Express 4 57.5 2 0.25 10.0 79 79 79 +0 3 Lady Crusade 3 60.0 3 1.25 8.5 - 87 87 +87 4 Women Of Fame 2 59.0 4 3.00 5.5 84 91 91 +7 5 Spirited Girl 4 55.0 5 3.75 10.0 - 74 74 +74 6 Life Lesson 3 59.5 6 5.00 8.5 76 86 86 +10 7 French Duchess 2 59.0 7 7.00 5.5 - 91 91 +91 8 Hillary Step 3 59.0 8 7.75 8.5 - 85 85 +85 9 Lady Chatterley 2 59.0 9 8.50 5.5 - 91 91 +91 10 Out The Mist 3 59.0 10 8.75 8.5 - 85 85 +85 11 Duchess Penelope 3 59.0 11 11.50 8.5 - 85 85 +85 12 Rainbow River 3 57.5 12 13.25 8.5 - 82 82 +82 13 Forever Mary 2 59.0 13 16.75 5.5 50 91 91 +41 99 House Of Diamonds 3 59.0 99 0.00 8.5 - 85 85 +0 99 Tiffany 3 59.0 99 0.00 8.5 - 85 85 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Grape Shot | - | 69 | 6 | +63 | 5.5 | - | |
| 2 | Phantom Express Line | 79 | 76 | 79 | -3 | 10.0 | ||
| 3 | Lady Crusade | - | 67 | 87 | -20 | 8.5 | - | |
| 4 | Women Of Fame | 84 | 79 | 91 | -12 | 5.5 | - | |
| 5 | Spirited Girl | - | 61 | 74 | -13 | 10.0 | - | |
| 6 | Life Lesson | 76 | 49 | 86 | -37 | 8.5 | - | |
| 7 | French Duchess | - | 70 | 91 | -21 | 5.5 | - | |
| 8 | Hillary Step | - | 82 | 85 | -3 | 8.5 | - | |
| 9 | Lady Chatterley | - | 64 | 91 | -27 | 5.5 | - | |
| 10 | Out The Mist | - | 69 | 85 | -16 | 8.5 | - | |
| 11 | Duchess Penelope | - | - | 85 | -85 | 8.5 | - | |
| 12 | Rainbow River | - | 66 | 82 | -16 | 8.5 | - | |
| 13 | Forever Mary | 50 | 41 | 91 | -50 | 5.5 | - | |
| 99 | House Of Diamonds | - | - | 85 | -85 | 8.5 | - | |
| 99 | Tiffany | - | 35 | 85 | -50 | 8.5 | - |
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