Official NHA Assessment
Race 6: STITCH CLASS 3 (Open. Benchmark at 60.0kg = 96)
Line Horse
Dumbledore
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Kaiboy 2 59.0 1 0.00 4.0 102 100 100 -2 2 Dumbledore 4 59.0 2 0.75 7.0 94 94 94 +0 3 Riverstone 2 56.5 3 3.00 4.0 89 95 95 +6 4 War Chariot 4 53.5 4 4.25 7.0 83 83 83 +0 5 Nordic Chief 4 59.0 5 6.00 7.0 94 94 94 +0 6 Speed Racer 4 57.5 6 7.75 7.0 91 91 91 +0 7 Dean Street 3 60.5 7 8.05 6.0 97 99 99 +2 8 Mojo Man 4 58.0 8 8.55 7.0 92 92 92 +0 9 Escarpment 4 55.0 9 8.60 7.0 86 86 86 +0 10 Surge Of Power 2 56.5 10 11.35 4.0 97 95 95 -2 11 Handsome Prince 2 57.0 11 17.10 4.0 98 96 96 -2 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Kaiboy | 102 | 108 | 100 | +8 | 4.0 | - | |
| 2 | Dumbledore Line | 94 | 105 | 94 | +11 | 7.0 | ||
| 3 | Riverstone | 89 | 84 | 95 | -11 | 4.0 | - | |
| 4 | War Chariot | 83 | 82 | 83 | -1 | 7.0 | - | |
| 5 | Nordic Chief | 94 | 94 | 94 | ✓ Match | 7.0 | - | |
| 6 | Speed Racer | 91 | 88 | 91 | -3 | 7.0 | - | |
| 7 | Dean Street | 97 | 102 | 99 | +3 | 6.0 | - | |
| 8 | Mojo Man | 92 | 80 | 92 | -12 | 7.0 | - | |
| 9 | Escarpment | 86 | 79 | 86 | -7 | 7.0 | - | |
| 10 | Surge Of Power | 97 | 80 | 95 | -15 | 4.0 | - | |
| 11 | Handsome Prince | 98 | 91 | 96 | -5 | 4.0 | - |
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