Official NHA Assessment
Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens)
Line Horse
Tracksuit Dave
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
1 / 5
Within 2 points
Significant Diffs
3 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Tracksuit Dave 3 60.0 1 0.00 2.5 76 76 76 +0 2 Rock My Boat 3 60.0 2 5.50 2.5 66 76 76 +10 3 River Kitten 3 58.5 3 8.00 2.5 50 73 73 +23 4 Masterofthebaroque 3 60.0 4 99.99 2.5 72 76 76 +4 99 Beach Walker 2 60.0 99 0.00 0.0 - 81 81 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Tracksuit Dave Line | 76 | 76 | 76 | ✓ Match | 2.5 | ||
| 2 | Rock My Boat | 66 | 65 | 76 | -11 | 2.5 | - | |
| 3 | River Kitten | 50 | 55 | 73 | -18 | 2.5 | - | |
| 4 | Masterofthebaroque | 72 | 72 | 76 | -4 | 2.5 | - | |
| 99 | Beach Walker | - | 75 | 81 | -6 | 0.0 | - |
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