Official NHA Assessment
Race 2: NASHUA PMB MAIDEN JUVENILE PLATE (Fillies) (For 2 year old fillies)
Line Horse
None identified
Reference for assessment
Exact Matches
1 / 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 Mamas Baby 4 60.0 1 0.00 2.5 - - - +0 2 Full Of Magic 4 60.0 2 0.25 2.5 - - - +0 3 Fairy Tripp 2 60.0 3 1.45 1.0 - - - +0 4 Jane's Vision 2 58.5 4 1.95 1.0 - - - +0 5 Vision To Achieve 4 60.0 5 3.00 2.5 - - - +0 6 Baby Love 2 60.0 6 3.15 1.0 - - - +0 7 Algorithm 2 60.0 7 5.95 1.0 - - - +0 99 Si Veloce 4 60.0 99 0.00 2.5 - - - +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Mamas Baby | - | 65 | - | +65 | 2.5 | - | |
| 2 | Full Of Magic | - | 52 | - | +52 | 2.5 | - | |
| 3 | Fairy Tripp | - | 66 | - | +66 | 1.0 | - | |
| 4 | Jane's Vision | - | 65 | - | +65 | 1.0 | - | |
| 5 | Vision To Achieve | - | 87 | - | +87 | 2.5 | - | |
| 6 | Baby Love | - | 76 | - | +76 | 1.0 | - | |
| 7 | Algorithm | - | - | - | ✓ Match | 1.0 | - | |
| 99 | Si Veloce | - | 50 | - | - | 2.5 | - |
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