Official NHA Assessment
Race 4: RACING240 PINNACLE STAKES (Open to all horses)
Line Horse
Zatara Magic
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
2 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 FireAlley 7 62.0 1 0.00 0.0 109 102 102 -7 2 Zatara Magic 5 62.0 2 1.00 0.0 108 108 108 +0 3 Roll Of The Dice 3 55.0 3 1.75 10.0 82 73 73 -9 4 Global Ally 6 58.5 4 2.25 0.0 95 100 100 +5 5 Bingwa 7 62.0 5 3.00 0.0 120 105 110 -10 6 Golden Peace 2 62.0 6 4.25 0.0 110 104 104 -6 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | FireAlley | 109 | 107 | 102 | +5 | 0.0 | - | |
| 2 | Zatara Magic Line | 108 | 114 | 108 | +6 | 0.0 | ||
| 3 | Roll Of The Dice | 82 | 81 | 73 | +8 | 10.0 | - | |
| 4 | Global Ally | 95 | 97 | 100 | -3 | 0.0 | - | |
| 5 | Bingwa | 120 | 107 | 110 | -3 | 0.0 | - | |
| 6 | Golden Peace | 110 | 105 | 104 | +1 | 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