Official NHA Assessment
Race 4: CLASSIFIED STAKES (For horses with nett rating of 71 and below)
Line Horse
Kursk (AUS)
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 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 Grand Warrior 2 60.0 1 0.00 0.0 86 68 68 -18 2 Kursk (AUS) 6 58.0 2 5.00 0.0 64 64 64 +0 3 Pacific Duke 4 52.0 3 6.50 4.5 55 43 45 -10 4 Karoo Winter 4 50.5 4 10.50 4.5 58 40 48 -10 5 At The Office 6 52.0 5 15.50 0.0 50 52 52 +2 99 Magic Mike 6 60.0 99 0.00 0.0 - 68 68 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Grand Warrior | 86 | 96 | 68 | +28 | 0.0 | - | |
| 2 | Kursk (AUS) Line | 64 | 67 | 64 | +3 | 0.0 | ||
| 3 | Pacific Duke | 55 | 49 | 45 | +4 | 4.5 | - | |
| 4 | Karoo Winter | 58 | 56 | 48 | +8 | 4.5 | - | |
| 5 | At The Office | 50 | 45 | 52 | -7 | 0.0 | - | |
| 99 | Magic Mike | - | 67 | 68 | -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