Official NHA Assessment
Race 1: 4RACING THANKS & APPRECIATE SHARON KOTZEN RACING STABLES MAIDEN JUVENILE PLATE (For 2 year olds)
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
0 / 14
Within 2 points
Significant Diffs
14 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Pisces 2 60.0 1 0.00 0.5 - - - +0 2 Swiss Walt 4 60.0 2 0.25 2.0 - - - +0 3 Single File 2 60.0 3 4.25 0.5 - - - +0 4 Bridgerton 2 60.0 4 6.00 0.5 - - - +0 5 Devil A Saint 4 60.0 5 7.25 2.0 - - - +0 6 The Lady Love 2 57.5 6 8.75 0.5 - - - +0 7 Grey Smoke 2 60.0 7 10.25 0.5 - - - +0 8 Excalibur 2 60.0 8 12.75 0.5 - - - +0 9 Legal Thriller 4 60.0 9 12.80 2.0 - - - +0 10 Winning Grace 2 57.5 10 14.05 0.5 - - - +0 11 Camara Green 2 57.5 11 15.30 0.5 - - - +0 12 Ursern Valley 2 57.5 12 16.30 0.5 - - - +0 13 Rain Bird 2 57.5 13 26.55 0.5 - - - +0 14 Sound Of Hooves 2 60.0 14 26.80 0.5 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Pisces | - | 56 | - | +56 | 0.5 | - | |
| 2 | Swiss Walt | - | 74 | - | +74 | 2.0 | - | |
| 3 | Single File | - | 74 | - | +74 | 0.5 | - | |
| 4 | Bridgerton | - | 67 | - | +67 | 0.5 | - | |
| 5 | Devil A Saint | - | 69 | - | +69 | 2.0 | - | |
| 6 | The Lady Love | - | 63 | - | +63 | 0.5 | - | |
| 7 | Grey Smoke | - | 77 | - | +77 | 0.5 | - | |
| 8 | Excalibur | - | 65 | - | +65 | 0.5 | - | |
| 9 | Legal Thriller | - | 70 | - | +70 | 2.0 | - | |
| 10 | Winning Grace | - | 62 | - | +62 | 0.5 | - | |
| 11 | Camara Green | - | 40 | - | +40 | 0.5 | - | |
| 12 | Ursern Valley | - | 45 | - | +45 | 0.5 | - | |
| 13 | Rain Bird | - | 70 | - | +70 | 0.5 | - | |
| 14 | Sound Of Hooves | - | 20 | - | +20 | 0.5 | - |
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