Official NHA Assessment
Race 5: CHARITY MILE 1 NOVEMBER MAIDEN PLATE (For all Maidens)
Line Horse
Scarlett Heart
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
10 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Take No Prisoners 2 56.0 1 0.00 0.0 - 4 4 +4 2 Radio Star 2 56.0 2 0.05 0.0 - 4 4 +4 3 Stay Tuned 3 60.0 3 0.75 1.5 - 13 13 +13 4 Canford Club 3 60.0 4 3.00 1.5 - 11 11 +11 5 Scarlett Heart 2 53.0 5 3.25 0.0 - - - +0 6 Greenlight Racer 2 60.0 6 3.55 0.0 - 13 13 +13 7 Cronus 3 60.0 7 4.55 1.5 75 9 65 -10 8 River Kitten 3 60.0 8 5.85 1.5 - 9 9 +9 9 World Order 2 52.0 9 6.05 0.0 - -4 - +0 10 Two For The Boys 3 60.0 10 7.15 1.5 76 9 66 -10 11 Jabberwocky 4 60.0 11 12.65 0.5 62 11 52 -10 12 Grand Legacy 3 60.0 12 20.65 1.5 - 9 9 +9 13 First Arrow 3 60.0 13 26.90 1.5 - 9 9 +9 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Take No Prisoners | - | 85 | 4 | +81 | 0.0 | - | |
| 2 | Radio Star | - | 102 | 4 | +98 | 0.0 | - | |
| 3 | Stay Tuned | - | 71 | 13 | +58 | 1.5 | - | |
| 4 | Canford Club | - | - | 11 | -11 | 1.5 | - | |
| 5 | Scarlett Heart Line | - | 108 | - | +108 | 0.0 | ||
| 6 | Greenlight Racer | - | 75 | 13 | +62 | 0.0 | - | |
| 7 | Cronus | 75 | 65 | 65 | ✓ Match | 1.5 | - | |
| 8 | River Kitten | - | 50 | 9 | +41 | 1.5 | - | |
| 9 | World Order | - | 84 | - | +84 | 0.0 | - | |
| 10 | Two For The Boys | 76 | 61 | 66 | -5 | 1.5 | - | |
| 11 | Jabberwocky | 62 | 53 | 52 | +1 | 0.5 | - | |
| 12 | Grand Legacy | - | - | 9 | -9 | 1.5 | - | |
| 13 | First Arrow | - | - | 9 | -9 | 1.5 | - |
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