Official NHA Assessment
Race 2: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Star Blaze
Reference for assessment
Exact Matches
2 / 5
Calculated = Official
Close Matches
3 / 5
Within 2 points
Significant Diffs
2 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Star Blaze 3 60.0 1 0.00 4.5 - - - +0 2 National Bliss 3 56.0 2 0.20 4.5 - -8 - +0 3 Miss River Dancer 3 60.0 3 3.50 4.5 - - - +0 4 Duchess Di 3 60.0 4 7.25 4.5 - - - +0 5 Empress Wu 3 60.0 5 8.25 4.5 63 - 59 -4 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Star Blaze Line | - | 77 | - | +77 | 4.5 | ||
| 2 | National Bliss | - | - | - | ✓ Match | 4.5 | - | |
| 3 | Miss River Dancer | - | - | - | ✓ Match | 4.5 | - | |
| 4 | Duchess Di | - | 74 | - | +74 | 4.5 | - | |
| 5 | Empress Wu | 63 | 61 | 59 | +2 | 4.5 | - |
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