Official NHA Assessment
Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za MAIDEN PLATE (For all Maidens)
Line Horse
Arbitrator
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Addiena 3 57.5 1 0.00 9.5 59 69 65 +6 2 Arbitrator 2 58.0 2 3.60 6.5 76 76 76 +0 3 I've Got Wings 2 55.5 3 4.65 6.5 74 71 71 -3 4 Ndabezitha 2 56.5 4 7.85 6.5 74 73 73 -1 5 Corsican 2 58.0 5 8.05 6.5 - 76 76 +76 6 Quantifier 2 58.0 6 11.05 6.5 - 76 76 +76 7 Axel Collins 5 58.0 7 11.45 0.0 - 89 89 +89 8 Easy Roy Easy 3 60.0 8 15.45 9.5 - 74 74 +74 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Addiena | 59 | 83 | 65 | +18 | 9.5 | - | |
| 2 | Arbitrator Line | 76 | 82 | 76 | +6 | 6.5 | ||
| 3 | I've Got Wings | 74 | 68 | 71 | -3 | 6.5 | - | |
| 4 | Ndabezitha | 74 | 59 | 73 | -14 | 6.5 | - | |
| 5 | Corsican | - | 61 | 76 | -15 | 6.5 | - | |
| 6 | Quantifier | - | 74 | 76 | -2 | 6.5 | - | |
| 7 | Axel Collins | - | 55 | 89 | -34 | 0.0 | - | |
| 8 | Easy Roy Easy | - | 37 | 74 | -37 | 9.5 | - |
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