Official NHA Assessment
Race 2: CHAMPION TWO-YEAR-OLD FILLY: GREEN DIAMOND MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA / CRS Bonus)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
0 / 14
Within 2 points
Significant Diffs
9 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Fair Proposal 2 60.0 1 0.00 1.0 - - - +0 2 Mamlambo 2 60.0 2 0.30 1.0 - - - +0 3 Season's Greetings 2 60.0 3 1.50 1.0 - - - +0 4 A Bit Of Class 2 60.0 4 3.40 1.0 - - - +0 5 Chericherilady 2 60.0 5 5.40 1.0 - - - +0 6 One Summer 2 60.0 6 5.45 1.0 - - - +0 7 Amaze Me 2 60.0 7 9.45 1.0 - - - +0 8 Kahalawai 2 60.0 8 11.85 1.0 - - - +0 9 Sapphire Sun 2 60.0 9 12.35 1.0 - - - +0 99 Lucky Chance 2 60.0 99 0.00 1.0 - - - +0 99 Manuriki 2 60.0 99 0.00 1.0 - - - +0 99 Let's Go Lola 2 60.0 99 0.00 1.0 - - - +0 99 Queen Of Pearls 2 60.0 99 0.00 1.0 - - - +0 99 Queensland 2 60.0 99 0.00 1.0 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Fair Proposal | - | 83 | - | +83 | 1.0 | - | |
| 2 | Mamlambo | - | 91 | - | +91 | 1.0 | - | |
| 3 | Season's Greetings | - | 87 | - | +87 | 1.0 | - | |
| 4 | A Bit Of Class | - | 98 | - | +98 | 1.0 | - | |
| 5 | Chericherilady | - | 67 | - | +67 | 1.0 | - | |
| 6 | One Summer | - | 69 | - | +69 | 1.0 | - | |
| 7 | Amaze Me | - | 64 | - | +64 | 1.0 | - | |
| 8 | Kahalawai | - | 41 | - | +41 | 1.0 | - | |
| 9 | Sapphire Sun | - | 71 | - | +71 | 1.0 | - | |
| 99 | Lucky Chance | - | 74 | - | - | 1.0 | - | |
| 99 | Manuriki | - | 52 | - | - | 1.0 | - | |
| 99 | Let's Go Lola | - | 91 | - | - | 1.0 | - | |
| 99 | Queen Of Pearls | - | 80 | - | - | 1.0 | - | |
| 99 | Queensland | - | 80 | - | - | 1.0 | - |
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