Official NHA Assessment
Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (For Maidens. R15 000 Win bonus ROA Members)
Line Horse
Launch Code
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Quixote 2 60.0 1 0.00 0.0 69 73 73 +4 2 Donny Tee 4 58.0 2 1.25 5.0 70 63 63 -7 3 Graduation Time 4 58.0 3 4.75 5.0 68 59 59 -9 4 Launch Code 2 58.0 4 5.00 0.0 69 69 69 +0 5 Royal Venus 2 57.5 5 8.25 0.0 59 68 68 +9 6 Chalcos 2 58.0 6 10.50 0.0 - 69 69 +69 7 Mia Ragazza 4 57.5 7 13.75 5.0 - 58 58 +58 8 Heartlight 2 57.5 8 14.50 0.0 58 68 68 +10 9 Good Fortune 3 58.0 9 38.00 8.0 - 53 53 +53 99 Just Forever 3 57.5 99 0.00 8.0 - 52 52 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Quixote | 69 | 69 | 73 | -4 | 0.0 | - | |
| 2 | Donny Tee | 70 | 68 | 63 | +5 | 5.0 | - | |
| 3 | Graduation Time | 68 | 70 | 59 | +11 | 5.0 | - | |
| 4 | Launch Code Line | 69 | 70 | 69 | +1 | 0.0 | ||
| 5 | Royal Venus | 59 | 50 | 68 | -18 | 0.0 | - | |
| 6 | Chalcos | - | 60 | 69 | -9 | 0.0 | - | |
| 7 | Mia Ragazza | - | 50 | 58 | -8 | 5.0 | - | |
| 8 | Heartlight | 58 | 48 | 68 | -20 | 0.0 | - | |
| 9 | Good Fortune | - | - | 53 | -53 | 8.0 | - | |
| 99 | Just Forever | - | 49 | 52 | -3 | 8.0 | - |
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