Official NHA Assessment
Race 1: HOLLYWOODBETS DURBANVILLE WELCOMES YOU MAIDEN PLATE (For all Maidens)
Line Horse
Gravity
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Major Apollo 2 59.0 1 0.00 5.5 - 89 6 +6 2 Gravity 4 59.0 2 0.75 10.0 80 80 80 +0 3 Casino Ace 5 60.0 3 3.25 0.0 - 102 102 +102 4 Winning Captain 3 60.0 4 6.00 8.5 68 85 85 +17 5 Captain Cool 3 59.0 5 6.50 8.5 - 83 83 +83 6 Gimme's Captain 3 59.0 6 8.00 8.5 - 83 83 +83 7 Newton Heath 3 59.0 7 8.50 8.5 - 83 83 +83 8 Green Knight 2 59.0 8 9.75 5.5 - 89 89 +89 9 Portcullis 3 59.0 9 13.75 8.5 - 83 83 +83 10 Mo Flow 3 59.0 10 14.05 8.5 - 83 83 +83 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Major Apollo | - | 72 | 6 | +66 | 5.5 | - | |
| 2 | Gravity Line | 80 | 63 | 80 | -17 | 10.0 | ||
| 3 | Casino Ace | - | 56 | 102 | -46 | 0.0 | - | |
| 4 | Winning Captain | 68 | 54 | 85 | -31 | 8.5 | - | |
| 5 | Captain Cool | - | 72 | 83 | -11 | 8.5 | - | |
| 6 | Gimme's Captain | - | 66 | 83 | -17 | 8.5 | - | |
| 7 | Newton Heath | - | 60 | 83 | -23 | 8.5 | - | |
| 8 | Green Knight | - | 60 | 89 | -29 | 5.5 | - | |
| 9 | Portcullis | - | 63 | 83 | -20 | 8.5 | - | |
| 10 | Mo Flow | - | 66 | 83 | -17 | 8.5 | - |
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