Official NHA Assessment
Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)
Line Horse
All Rise
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
4 / 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 Aunt Pittypat 3 60.0 1 0.00 1.5 61 49 49 -12 2 Exquisite Dawn 2 55.0 2 12.75 0.0 - 42 42 +42 3 All Rise 3 60.0 3 13.50 1.5 49 49 49 +0 4 Coffee In Brazil 3 60.0 4 19.00 1.5 54 49 49 -5 5 Dusky Rose 3 60.0 5 22.00 1.5 58 49 49 -9 6 Impression 3 60.0 6 27.00 1.5 60 49 50 -10 7 Punta Alta 2 60.0 7 99.99 0.0 51 52 52 +1 99 Antananarivo 4 60.0 99 0.00 0.5 - 51 51 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Aunt Pittypat | 61 | 65 | 49 | +16 | 1.5 | - | |
| 2 | Exquisite Dawn | - | 58 | 42 | +16 | 0.0 | - | |
| 3 | All Rise Line | 49 | 50 | 49 | +1 | 1.5 | ||
| 4 | Coffee In Brazil | 54 | 49 | 49 | ✓ Match | 1.5 | - | |
| 5 | Dusky Rose | 58 | 58 | 49 | +9 | 1.5 | - | |
| 6 | Impression | 60 | 51 | 50 | +1 | 1.5 | - | |
| 7 | Punta Alta | 51 | 50 | 52 | -2 | 0.0 | - | |
| 99 | Antananarivo | - | 57 | 51 | +6 | 0.5 | - |
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