Official NHA Assessment
Race 6: MWOS IPI TOMBE STAKES (Listed) (Weight for Age)
Line Horse
Jaeger Moon
Reference for assessment
Exact Matches
2 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
3 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Jaeger Moon 7 60.0 1 0.00 0.0 97 97 97 +0 2 Tom's Diner 4 60.0 2 0.75 2.0 94 97 97 +3 3 Ideal View 6 60.0 3 2.00 0.0 90 100 100 +10 4 Action Zone 3 60.0 4 3.50 4.0 92 90 90 -2 5 Guerra 4 60.0 5 15.50 2.0 86 93 93 +7 99 River Power 3 60.0 99 0.00 4.0 - 89 89 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Jaeger Moon Line | 97 | 97 | 97 | ✓ Match | 0.0 | ||
| 2 | Tom's Diner | 94 | 94 | 97 | -3 | 2.0 | - | |
| 3 | Ideal View | 90 | 90 | 100 | -10 | 0.0 | - | |
| 4 | Action Zone | 92 | 90 | 90 | ✓ Match | 4.0 | - | |
| 5 | Guerra | 86 | 86 | 93 | -7 | 2.0 | - | |
| 99 | River Power | - | 97 | 89 | +8 | 4.0 | - |
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