Official NHA Assessment
Race 4: TAKE A BET WINA NUMBA NUMBA MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)
Line Horse
Lady Greensleeves
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Sound Machine 3 60.0 1 0.00 4.0 73 55 55 -18 2 Lady Greensleeves 2 60.0 2 6.75 0.0 63 63 63 +0 3 Liberty Flag 2 60.0 3 7.00 0.0 56 63 63 +7 4 Empressofnormandy 3 60.0 4 7.25 4.0 73 55 63 -10 5 Quick Trip 2 60.0 5 8.35 0.0 78 63 68 -10 6 Like A Butterfly 3 60.0 6 14.60 4.0 65 55 55 -10 7 The Navy Lark 4 60.0 7 19.85 2.0 57 59 59 +2 8 Choc' Late 3 56.0 8 20.15 4.0 48 47 47 -1 9 Tambourine Girl 3 60.0 9 20.45 4.0 - 55 55 +55 10 It's Up To Me 2 60.0 10 99.99 0.0 - 63 63 +63 99 Lady Lennox 2 60.0 99 0.00 0.0 - 63 63 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Sound Machine | 73 | 83 | 55 | +28 | 4.0 | - | |
| 2 | Lady Greensleeves Line | 63 | 63 | 63 | ✓ Match | 0.0 | ||
| 3 | Liberty Flag | 56 | 59 | 63 | -4 | 0.0 | - | |
| 4 | Empressofnormandy | 73 | 61 | 63 | -2 | 4.0 | - | |
| 5 | Quick Trip | 78 | 82 | 68 | +14 | 0.0 | - | |
| 6 | Like A Butterfly | 65 | 54 | 55 | -1 | 4.0 | - | |
| 7 | The Navy Lark | 57 | 74 | 59 | +15 | 2.0 | - | |
| 8 | Choc' Late | 48 | 56 | 47 | +9 | 4.0 | - | |
| 9 | Tambourine Girl | - | - | 55 | -55 | 4.0 | - | |
| 10 | It's Up To Me | - | 45 | 63 | -18 | 0.0 | - | |
| 99 | Lady Lennox | - | 63 | 63 | ✓ Match | 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