Official NHA Assessment
Race 3: PROGRESS PLATE (Maidens,1,2 & 3 time winners f & m)
Line Horse
Karoo Winter
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
5 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Why Madera 2 60.0 1 0.00 0.0 86 82 82 -4 2 Karoo Winter 4 52.0 2 5.00 4.0 58 58 58 +0 3 Cutback 6 57.0 3 5.50 0.0 73 76 76 +3 4 Qunetra 4 54.0 4 7.00 4.0 69 62 62 -7 5 Pacific Duke 4 56.5 5 8.00 4.0 55 67 67 +12 6 Mustatheef 3 52.5 6 11.00 7.0 49 53 53 +4 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Why Madera | 86 | 89 | 82 | +7 | 0.0 | - | |
| 2 | Karoo Winter Line | 58 | 56 | 58 | -2 | 4.0 | ||
| 3 | Cutback | 73 | 63 | 76 | -13 | 0.0 | - | |
| 4 | Qunetra | 69 | 83 | 62 | +21 | 4.0 | - | |
| 5 | Pacific Duke | 55 | 49 | 67 | -18 | 4.0 | - | |
| 6 | Mustatheef | 49 | 42 | 53 | -11 | 7.0 | - |
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