Official NHA Assessment
Race 8: BETONTAB.CO.ZA FM 90 HANDICAP (F & M) (For Fillies and Mares)
Line Horse
Rozara
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Big Eyed Girl 3 56.5 1 0.00 2.5 83 83 83 +0 2 Rozara 3 56.0 2 3.50 2.5 82 82 82 +0 3 May Queen 5 61.5 3 4.50 0.0 93 98 98 +5 4 Wings Of Nike 6 56.0 4 6.00 0.0 81 87 87 +6 5 Strike A Match 2 54.5 5 6.25 1.5 82 81 81 -1 6 Vivacious Spirit 2 55.5 6 7.25 1.5 89 83 83 -6 7 Civil Princess (ARG 3 54.0 7 9.00 2.5 81 78 78 -3 8 Silver Winter 2 56.0 8 17.00 1.5 85 84 84 -1 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Big Eyed Girl | 83 | 96 | 83 | +13 | 2.5 | - | |
| 2 | Rozara Line | 82 | 73 | 82 | -9 | 2.5 | ||
| 3 | May Queen | 93 | 90 | 98 | -8 | 0.0 | - | |
| 4 | Wings Of Nike | 81 | 68 | 87 | -19 | 0.0 | - | |
| 5 | Strike A Match | 82 | 76 | 81 | -5 | 1.5 | - | |
| 6 | Vivacious Spirit | 89 | 78 | 83 | -5 | 1.5 | - | |
| 7 | Civil Princess (ARG) | 81 | 72 | 78 | -6 | 2.5 | - | |
| 8 | Silver Winter | 85 | 88 | 84 | +4 | 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