Official NHA Assessment
Race 6: RACING240 CLASSIFIED STAKES (For horses with nett rating of 78 and below)
Line Horse
Que Shiraz
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Millahue 3 60.0 1 0.00 1.5 78 74 74 -4 2 Que Shiraz 3 60.0 2 1.25 1.5 78 78 78 +0 3 Night Ruler 3 60.0 3 1.65 1.5 81 77 77 -4 4 Gentleman Joe 3 60.0 4 2.05 1.5 78 77 77 -1 5 Policy Target 5 56.0 5 5.30 0.0 69 69 69 +0 6 Line Of Duty 3 60.0 6 5.70 1.5 78 74 74 -4 7 Guy Alexander 3 52.0 7 7.70 1.5 60 58 58 -2 8 Service Ace 3 60.0 8 8.20 1.5 79 74 74 -5 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Millahue | 78 | 81 | 74 | +7 | 1.5 | - | |
| 2 | Que Shiraz Line | 78 | 72 | 78 | -6 | 1.5 | ||
| 3 | Night Ruler | 81 | 75 | 77 | -2 | 1.5 | - | |
| 4 | Gentleman Joe | 78 | 83 | 77 | +6 | 1.5 | - | |
| 5 | Policy Target | 69 | 66 | 69 | -3 | 0.0 | - | |
| 6 | Line Of Duty | 78 | 75 | 74 | +1 | 1.5 | - | |
| 7 | Guy Alexander | 60 | 72 | 58 | +14 | 1.5 | - | |
| 8 | Service Ace | 79 | 73 | 74 | -1 | 1.5 | - |
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