Official NHA Assessment
Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Kentucky Lassie
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
11 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Endeared 2 56.0 1 0.00 4.0 56 -4 - -56 2 Rockie Blue 3 60.0 2 0.25 6.0 - - - +0 3 Endizayo 3 60.0 3 0.35 6.0 60 - 59 -1 4 Dynasty's Last 5 56.0 4 0.85 0.0 49 4 39 -10 5 Kentucky Lassie 3 60.0 5 0.95 6.0 - - - +0 6 Engelandpark 2 60.0 6 4.45 4.0 66 4 56 -10 7 Waltzing Doll 2 60.0 7 4.50 4.0 - 4 4 +4 8 Elusive Bomba 3 56.0 8 4.75 6.0 59 -8 49 -10 9 Manuriki 2 57.5 9 6.00 4.0 40 -1 30 -10 10 World Of Diamonds 2 60.0 10 6.50 4.0 60 4 50 -10 11 Buddleja 2 60.0 11 6.60 4.0 67 4 57 -10 12 Iyoolbhanoyi 2 60.0 12 99.92 4.0 - 4 4 +4 99 Focal Point 2 60.0 99 0.00 4.0 - 4 4 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Endeared | 56 | 70 | - | +70 | 4.0 | - | |
| 2 | Rockie Blue | - | 71 | - | +71 | 6.0 | - | |
| 3 | Endizayo | 60 | 56 | 59 | -3 | 6.0 | - | |
| 4 | Dynasty's Last | 49 | 61 | 39 | +22 | 0.0 | - | |
| 5 | Kentucky Lassie Line | - | 77 | - | +77 | 6.0 | ||
| 6 | Engelandpark | 66 | 66 | 56 | +10 | 4.0 | - | |
| 7 | Waltzing Doll | - | 60 | 4 | +56 | 4.0 | - | |
| 8 | Elusive Bomba | 59 | 59 | 49 | +10 | 6.0 | - | |
| 9 | Manuriki | 40 | 52 | 30 | +22 | 4.0 | - | |
| 10 | World Of Diamonds | 60 | 59 | 50 | +9 | 4.0 | - | |
| 11 | Buddleja | 67 | 59 | 57 | +2 | 4.0 | - | |
| 12 | Iyoolbhanoyi | - | 44 | 4 | +40 | 4.0 | - | |
| 99 | Focal Point | - | 64 | 4 | +60 | 4.0 | - |
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