Official NHA Assessment
Race 3: www.tabgold.co.za CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 66)
Line Horse
Swiss Paradise
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Drive By 6 53.0 1 0.00 0.0 60 61 61 +1 2 Mamas Baby 4 61.0 2 0.60 5.0 68 67 67 -1 3 Swiss Paradise 3 55.5 3 3.10 4.5 57 57 57 +0 4 Chakpori 3 56.0 4 3.40 4.5 72 58 62 -10 5 Glamorz 3 62.0 5 4.30 4.5 76 70 70 -6 6 Quentasia 4 53.5 6 4.55 5.0 53 52 52 -1 7 Sweet Julia 2 60.5 7 5.95 3.0 67 70 70 +3 8 Chef's Kiss 4 50.5 8 8.25 5.0 50 46 46 -4 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Drive By | 60 | 68 | 61 | +7 | 0.0 | - | |
| 2 | Mamas Baby | 68 | 65 | 67 | -2 | 5.0 | - | |
| 3 | Swiss Paradise Line | 57 | 60 | 57 | +3 | 4.5 | ||
| 4 | Chakpori | 72 | 64 | 62 | +2 | 4.5 | - | |
| 5 | Glamorz | 76 | 62 | 70 | -8 | 4.5 | - | |
| 6 | Quentasia | 53 | 58 | 52 | +6 | 5.0 | - | |
| 7 | Sweet Julia | 67 | 73 | 70 | +3 | 3.0 | - | |
| 8 | Chef's Kiss | 50 | 46 | 46 | ✓ Match | 5.0 | - |
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