Official NHA Assessment
Race 3: SOPHOMORE PLATE (For 3 year-olds)
Line Horse
Royal Kingdom
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
4 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Buffalo Bill 2 58.0 1 0.00 0.0 101 99 99 -2 2 All Systems Go 3 54.0 2 1.50 4.0 106 86 96 -10 3 Royal Kingdom 2 60.0 3 7.00 0.0 103 103 103 +0 4 Above The Horizon 2 58.0 4 8.00 0.0 85 99 99 +14 99 King Prawn 2 56.0 99 0.00 0.0 - 95 95 +0 99 Smiddyburn 3 55.0 99 0.00 4.0 - 85 85 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Buffalo Bill | 101 | 107 | 99 | +8 | 0.0 | - | |
| 2 | All Systems Go | 106 | 102 | 96 | +6 | 4.0 | - | |
| 3 | Royal Kingdom Line | 103 | 103 | 103 | ✓ Match | 0.0 | ||
| 4 | Above The Horizon | 85 | 86 | 99 | -13 | 0.0 | - | |
| 99 | King Prawn | - | 98 | 95 | +3 | 0.0 | - | |
| 99 | Smiddyburn | - | 77 | 85 | -8 | 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