Official NHA Assessment
Race 4: RACING TODAY MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)
Line Horse
Perform
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Cantfoolme 2 60.0 1 0.00 0.0 60 55 55 -5 2 Lady Of Tibet 2 56.0 2 0.05 0.0 - 47 47 +47 3 Kalikaa 3 60.0 3 6.00 1.0 65 53 55 -10 4 Rainbow River 3 57.5 4 6.25 1.0 70 48 60 -10 5 Perform 2 60.0 5 6.50 0.0 55 55 55 +0 6 Ambitious Lady 3 60.0 6 7.00 1.0 67 53 57 -10 7 Spirit In The Wind 4 56.0 7 15.50 0.5 59 46 49 -10 8 Quello Che 3 56.0 8 38.50 1.0 - 45 45 +45 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Cantfoolme | 60 | 51 | 55 | -4 | 0.0 | - | |
| 2 | Lady Of Tibet | - | 79 | 47 | +32 | 0.0 | - | |
| 3 | Kalikaa | 65 | 63 | 55 | +8 | 1.0 | - | |
| 4 | Rainbow River | 70 | 66 | 60 | +6 | 1.0 | - | |
| 5 | Perform Line | 55 | 54 | 55 | -1 | 0.0 | ||
| 6 | Ambitious Lady | 67 | 62 | 57 | +5 | 1.0 | - | |
| 7 | Spirit In The Wind | 59 | 60 | 49 | +11 | 0.5 | - | |
| 8 | Quello Che | - | 61 | 45 | +16 | 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