Official NHA Assessment
Race 3: CHAMPION TWO-YEAR-OLD COLT/GELDING: ESTEEMED MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
11 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Jan Van Goyen 2 60.0 1 0.00 1.0 - - - +0 2 Chapbook 2 60.0 2 4.50 1.0 - - - +0 3 Carnarvon 2 60.0 3 6.90 1.0 - - - +0 4 Palace Attack 2 60.0 4 7.40 1.0 - - - +0 5 Royale Jacket 2 60.0 5 8.20 1.0 - - - +0 6 Tiger's Captain 2 60.0 6 13.50 1.0 - - - +0 7 All On Red 2 57.5 7 14.60 1.0 - - - +0 8 Forever Canford 2 60.0 8 21.10 1.0 - - - +0 9 Magwegwe 2 60.0 9 21.40 1.0 - - - +0 10 In The Willows 2 60.0 10 22.80 1.0 - - - +0 11 Seed Seeker 2 60.0 11 31.80 1.0 - - - +0 99 Winter Belle 2 57.5 99 0.00 1.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Jan Van Goyen | - | 118 | - | +118 | 1.0 | - | |
| 2 | Chapbook | - | 106 | - | +106 | 1.0 | - | |
| 3 | Carnarvon | - | 78 | - | +78 | 1.0 | - | |
| 4 | Palace Attack | - | 86 | - | +86 | 1.0 | - | |
| 5 | Royale Jacket | - | 74 | - | +74 | 1.0 | - | |
| 6 | Tiger's Captain | - | 70 | - | +70 | 1.0 | - | |
| 7 | All On Red | - | 60 | - | +60 | 1.0 | - | |
| 8 | Forever Canford | - | 67 | - | +67 | 1.0 | - | |
| 9 | Magwegwe | - | 62 | - | +62 | 1.0 | - | |
| 10 | In The Willows | - | 54 | - | +54 | 1.0 | - | |
| 11 | Seed Seeker | - | 81 | - | +81 | 1.0 | - | |
| 99 | Winter Belle | - | 70 | - | - | 1.0 | - |
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