Official NHA Assessment
Race 6: DURBAN GOLDEN HORSESHOE (Grade 2) (For 2 yo R60 000 Win BSA Bonus Series)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 16
Calculated = Official
Close Matches
0 / 16
Within 2 points
Significant Diffs
14 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Cousin Casey 2 60.0 1 0.00 0.0 - - - +0 2 Royal Victory 5 60.0 2 0.90 0.0 - - - +0 3 Prophet 2 60.0 3 1.40 0.0 - - - +0 4 Laguna Verde 5 60.0 4 2.30 0.0 - - - +0 5 Bright Green 2 60.0 5 2.35 0.0 - - - +0 6 Formagear 5 60.0 6 2.75 0.0 - - - +0 7 Countdown 2 60.0 7 2.95 0.0 - - - +0 8 Golden Prospect 2 60.0 8 3.85 0.0 - - - +0 9 Thunderstone 2 60.0 9 4.45 0.0 - - - +0 10 Grinkov 2 60.0 10 4.55 0.0 - - - +0 11 Miss Cool 2 57.5 11 4.80 0.0 - - - +0 12 Argo Alley 2 60.0 12 6.50 0.0 - - - +0 13 Imposing 2 60.0 13 7.00 0.0 - - - +0 14 Ocean Time 2 60.0 14 8.80 0.0 - - - +0 99 Swing Upon A Star 2 60.0 99 0.00 0.0 - - - +0 99 Itsrainingwilliam 2 60.0 99 0.00 0.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Cousin Casey | - | 125 | - | +125 | 0.0 | - | |
| 2 | Royal Victory | - | 124 | - | +124 | 0.0 | - | |
| 3 | Prophet | - | 66 | - | +66 | 0.0 | - | |
| 4 | Laguna Verde | - | 86 | - | +86 | 0.0 | - | |
| 5 | Bright Green | - | 76 | - | +76 | 0.0 | - | |
| 6 | Formagear | - | 108 | - | +108 | 0.0 | - | |
| 7 | Countdown | - | 106 | - | +106 | 0.0 | - | |
| 8 | Golden Prospect | - | 83 | - | +83 | 0.0 | - | |
| 9 | Thunderstone | - | 86 | - | +86 | 0.0 | - | |
| 10 | Grinkov | - | 87 | - | +87 | 0.0 | - | |
| 11 | Miss Cool | - | 106 | - | +106 | 0.0 | - | |
| 12 | Argo Alley | - | 110 | - | +110 | 0.0 | - | |
| 13 | Imposing | - | 107 | - | +107 | 0.0 | - | |
| 14 | Ocean Time | - | 66 | - | +66 | 0.0 | - | |
| 99 | Swing Upon A Star | - | 102 | - | - | 0.0 | - | |
| 99 | Itsrainingwilliam | - | 108 | - | - | 0.0 | - |
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