Official NHA Assessment
Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (3 year-olds) (For Maiden 3 year-olds)
Line Horse
Royal Miracle
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 Far Reaching 2 57.0 1 0.00 0.0 75 12 12 -63 2 Royal Miracle 3 60.0 2 13.00 9.0 - - - +0 3 Cliffie Clavin 3 60.0 3 13.40 9.0 - - - +0 4 Heroic Act 3 60.0 4 13.90 9.0 79 - 76 -3 5 Early Edition 3 60.0 5 20.25 9.0 - - - +0 99 Obsidian 3 60.0 99 0.00 9.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Far Reaching | 75 | 63 | 12 | +51 | 0.0 | - | |
| 2 | Royal Miracle Line | - | 66 | - | +66 | 9.0 | ||
| 3 | Cliffie Clavin | - | 57 | - | +57 | 9.0 | - | |
| 4 | Heroic Act | 79 | 65 | 76 | -11 | 9.0 | - | |
| 5 | Early Edition | - | - | - | ✓ Match | 9.0 | - | |
| 99 | Obsidian | - | 97 | - | - | 9.0 | - |
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