Official NHA Assessment
Race 3: TAB 4RACING APP MAIDEN PLATE (For Maidens. R15 000 Win bonus ROA Members)
Line Horse
Us Open
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 The Charioteer 2 57.0 1 0.00 0.0 - 78 6 +6 2 Launch Code 2 57.0 2 1.25 0.0 73 82 82 +9 3 Us Open 3 60.0 3 3.75 9.0 67 67 67 +0 4 Excalibur 2 57.0 4 5.00 0.0 70 78 78 +8 5 Bob Lee Swagger 4 57.0 5 5.50 7.0 - 64 64 +64 6 Regazzo Grande 2 57.0 6 5.60 0.0 74 78 78 +4 7 Follow The Band 2 57.0 7 9.10 0.0 68 78 78 +10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | The Charioteer | - | 71 | 6 | +65 | 0.0 | - | |
| 2 | Launch Code | 73 | 70 | 82 | -12 | 0.0 | - | |
| 3 | Us Open Line | 67 | 60 | 67 | -7 | 9.0 | ||
| 4 | Excalibur | 70 | 65 | 78 | -13 | 0.0 | - | |
| 5 | Bob Lee Swagger | - | 53 | 64 | -11 | 7.0 | - | |
| 6 | Regazzo Grande | 74 | 72 | 78 | -6 | 0.0 | - | |
| 7 | Follow The Band | 68 | 53 | 78 | -25 | 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