Official NHA Assessment
Race 1: ICI FIRE SAFETY SPECIALISTS MAIDEN PLATE (For all Maidens)
Line Horse
Prime Example
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Alfaatik 4 60.0 1 0.00 5.0 - 67 6 +6 2 Libeccio 5 57.0 2 5.50 0.0 63 71 71 +8 3 Atlantic City 3 60.0 3 6.25 9.0 62 59 59 -3 4 Prime Example 2 57.0 4 7.75 0.0 71 71 71 +0 5 Street's Ahead 2 53.5 5 8.95 0.0 62 64 64 +2 6 Skyjet 2 57.0 6 9.15 0.0 75 71 71 -4 7 The Merciful 5 57.0 7 15.40 0.0 65 71 71 +6 8 Going Global 3 60.0 8 27.15 9.0 42 59 59 +17 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Alfaatik | - | 81 | 6 | +75 | 5.0 | - | |
| 2 | Libeccio | 63 | 62 | 71 | -9 | 0.0 | - | |
| 3 | Atlantic City | 62 | 58 | 59 | -1 | 9.0 | - | |
| 4 | Prime Example Line | 71 | 93 | 71 | +22 | 0.0 | ||
| 5 | Street's Ahead | 62 | 55 | 64 | -9 | 0.0 | - | |
| 6 | Skyjet | 75 | 57 | 71 | -14 | 0.0 | - | |
| 7 | The Merciful | 65 | 54 | 71 | -17 | 0.0 | - | |
| 8 | Going Global | 42 | 50 | 59 | -9 | 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