Official NHA Assessment
Race 5: CITY OF CAPE TOWN SUMMER JUVENILE STAKES (Listed) (For 2-year-olds. R60 000 Win BSA Bonus Series.)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
12 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Cliff Top 2 57.0 1 0.00 3.5 - - - +0 2 We're Jamming 5 57.0 2 1.50 0.0 - - - +0 3 Grinkov 2 57.0 3 5.25 3.5 - - - +0 4 Cousin Casey 2 57.0 4 5.30 3.5 - - - +0 5 Pure Maverick 2 57.0 5 5.50 3.5 - - - +0 6 Certainly 2 57.5 6 6.75 3.5 - - - +0 7 Cruise Control 5 60.0 7 6.80 0.0 - - - +0 8 Spywing 2 57.5 8 7.30 3.5 - - - +0 9 Bonika 2 54.5 9 9.55 3.5 - - - +0 10 Pacific Green 2 57.5 10 11.30 3.5 - - - +0 11 Primula 2 57.5 11 14.80 3.5 - - - +0 12 Beneath The Moon 2 54.5 12 22.80 3.5 - - - +0 99 Street Outlaw 5 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 | Cliff Top | - | 109 | - | +109 | 3.5 | - | |
| 2 | We're Jamming | - | 108 | - | +108 | 0.0 | - | |
| 3 | Grinkov | - | 87 | - | +87 | 3.5 | - | |
| 4 | Cousin Casey | - | 125 | - | +125 | 3.5 | - | |
| 5 | Pure Maverick | - | 94 | - | +94 | 3.5 | - | |
| 6 | Certainly | - | 80 | - | +80 | 3.5 | - | |
| 7 | Cruise Control | - | 117 | - | +117 | 0.0 | - | |
| 8 | Spywing | - | 85 | - | +85 | 3.5 | - | |
| 9 | Bonika | - | 80 | - | +80 | 3.5 | - | |
| 10 | Pacific Green | - | 91 | - | +91 | 3.5 | - | |
| 11 | Primula | - | 57 | - | +57 | 3.5 | - | |
| 12 | Beneath The Moon | - | 59 | - | +59 | 3.5 | - | |
| 99 | Street Outlaw | - | 78 | - | - | 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