Official NHA Assessment
Race 7: GREYVILLE CONVENTION CENTRE MR 80 HANDICAP (Open)
Line Horse
Ralph The Rascal
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Count Marsh 7 55.0 1 0.00 0.0 70 75 70 +0 2 Botz 3 58.5 2 0.50 6.0 77 75 75 -2 3 Captain Who 4 60.5 3 1.40 3.5 81 82 82 +1 4 Ralph The Rascal 8 58.5 4 1.45 0.0 85 85 85 +0 5 Winter Waves 7 57.5 5 1.60 0.0 75 83 83 +8 6 Maxiumus 4 57.5 6 1.90 3.5 75 76 76 +1 7 Mr Molony 3 54.5 7 3.30 6.0 69 63 63 -6 8 Parmenion 5 50.0 8 14.00 0.0 77 65 67 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Count Marsh | 70 | 52 | 70 | -18 | 0.0 | - | |
| 2 | Botz | 77 | 77 | 75 | +2 | 6.0 | - | |
| 3 | Captain Who | 81 | 65 | 82 | -17 | 3.5 | - | |
| 4 | Ralph The Rascal Line | 85 | 73 | 85 | -12 | 0.0 | ||
| 5 | Winter Waves | 75 | 77 | 83 | -6 | 0.0 | - | |
| 6 | Maxiumus | 75 | 88 | 76 | +12 | 3.5 | - | |
| 7 | Mr Molony | 69 | 67 | 63 | +4 | 6.0 | - | |
| 8 | Parmenion | 77 | 78 | 67 | +11 | 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