Official NHA Assessment
Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (F & M) (For Maiden (F&M) R15 000 Win Bonus ROA Members)
Line Horse
Bella Attrice
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 The Lady Love 2 58.0 1 0.00 7.0 69 69 69 +0 2 Fire Chaser 2 58.0 2 0.25 7.0 67 69 69 +2 3 My Mistress 4 60.0 3 2.25 12.0 - 63 63 +63 4 Bella Attrice 2 58.0 4 3.00 7.0 69 69 69 +0 5 Dumisani 5 60.0 5 5.50 0.0 - 87 87 +87 6 Mauna Loa 2 58.0 6 5.75 7.0 - 69 69 +69 7 Mia Ragazza 4 60.0 7 6.50 12.0 - 63 63 +63 8 Fuel The Frenzy 4 60.0 8 9.00 12.0 - 63 63 +63 9 Ursern Valley 2 58.0 9 9.50 7.0 - 69 69 +69 99 For The Boytjies 4 60.0 99 0.00 12.0 - 63 63 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | The Lady Love | 69 | 63 | 69 | -6 | 7.0 | - | |
| 2 | Fire Chaser | 67 | 52 | 69 | -17 | 7.0 | - | |
| 3 | My Mistress | - | 40 | 63 | -23 | 12.0 | - | |
| 4 | Bella Attrice Line | 69 | 66 | 69 | -3 | 7.0 | ||
| 5 | Dumisani | - | 60 | 87 | -27 | 0.0 | - | |
| 6 | Mauna Loa | - | 56 | 69 | -13 | 7.0 | - | |
| 7 | Mia Ragazza | - | 50 | 63 | -13 | 12.0 | - | |
| 8 | Fuel The Frenzy | - | 34 | 63 | -29 | 12.0 | - | |
| 9 | Ursern Valley | - | 45 | 69 | -24 | 7.0 | - | |
| 99 | For The Boytjies | - | - | 63 | -63 | 12.0 | - |
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