Official NHA Assessment
Race 7: EASTER SPRINT (For horses 3 years and older - Non-Black Type)
Line Horse
Rio Querari
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
4 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Dance Variety 2 55.5 1 0.00 2.0 102 99 99 -3 2 Mufasa 6 58.5 2 0.75 0.0 107 109 109 +2 3 Rio Querari 5 63.0 3 1.50 0.0 118 118 118 +0 4 Tough Terrain 5 51.0 4 2.50 0.0 86 94 94 +8 5 Mr Cobbs 5 58.5 5 2.60 0.0 108 109 109 +1 6 Elusive Winter 4 51.0 6 9.60 3.5 84 87 87 +3 99 Icy Blast 4 52.5 99 0.00 3.5 - 90 90 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Dance Variety | 102 | 114 | 99 | +15 | 2.0 | - | |
| 2 | Mufasa | 107 | 98 | 109 | -11 | 0.0 | - | |
| 3 | Rio Querari Line | 118 | 116 | 118 | -2 | 0.0 | ||
| 4 | Tough Terrain | 86 | 81 | 94 | -13 | 0.0 | - | |
| 5 | Mr Cobbs | 108 | 106 | 109 | -3 | 0.0 | - | |
| 6 | Elusive Winter | 84 | 104 | 87 | +17 | 3.5 | - | |
| 99 | Icy Blast | - | 88 | 90 | -2 | 3.5 | - |
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