Official NHA Assessment
Race 1: SOUTH AFRICAN AIRWAYS MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
13 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Glastonbury 2 56.0 1 0.00 5.0 - - - +0 2 Caroline Island 2 57.5 2 0.30 5.0 - - - +0 3 Arashi 2 57.5 3 0.60 5.0 - - - +0 4 Zacatoo 2 60.0 4 2.50 5.0 - - - +0 5 Scorpio 2 60.0 5 3.75 5.0 - - - +0 6 Porridge Boy 2 60.0 6 5.25 5.0 - - - +0 7 Tenjiku 2 60.0 7 5.70 5.0 - - - +0 8 Waiting On Charlie 2 57.5 8 5.75 5.0 - - - +0 9 Princess Keira 2 57.5 9 9.75 5.0 - - - +0 10 Fortunate Son 2 57.5 10 12.50 5.0 - - - +0 11 Winchester 2 60.0 11 16.00 5.0 - - - +0 12 Iyoolbhanoyi 2 57.5 12 16.50 5.0 - - - +0 13 Mrs Dladla 2 57.5 13 22.75 5.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Glastonbury | - | 94 | - | +94 | 5.0 | - | |
| 2 | Caroline Island | - | 88 | - | +88 | 5.0 | - | |
| 3 | Arashi | - | 90 | - | +90 | 5.0 | - | |
| 4 | Zacatoo | - | 88 | - | +88 | 5.0 | - | |
| 5 | Scorpio | - | 75 | - | +75 | 5.0 | - | |
| 6 | Porridge Boy | - | 101 | - | +101 | 5.0 | - | |
| 7 | Tenjiku | - | 96 | - | +96 | 5.0 | - | |
| 8 | Waiting On Charlie | - | 74 | - | +74 | 5.0 | - | |
| 9 | Princess Keira | - | 87 | - | +87 | 5.0 | - | |
| 10 | Fortunate Son | - | 58 | - | +58 | 5.0 | - | |
| 11 | Winchester | - | 69 | - | +69 | 5.0 | - | |
| 12 | Iyoolbhanoyi | - | 44 | - | +44 | 5.0 | - | |
| 13 | Mrs Dladla | - | 30 | - | +30 | 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