Official NHA Assessment
Race 1: JUVENILE MALE GOOD FOR YOU & JUVENILE FEMALE UKUDUMA MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Playful Joules
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Playful Joules 2 60.0 1 0.00 0.0 74 74 74 +0 2 Laydelay 2 58.0 2 0.40 0.0 - 75 75 +75 3 Calanque 3 58.0 3 1.65 8.5 - 56 56 +56 4 La Patrona 2 58.0 4 2.65 0.0 - 72 72 +72 5 Lark's Song 3 58.0 5 3.40 8.5 - 54 54 +54 6 Surely Not 3 56.5 6 3.90 8.5 - 51 51 +51 7 Autumn Rush 3 58.0 7 9.90 8.5 - 53 53 +53 8 Redlight Lane 3 58.0 8 11.40 8.5 - 53 53 +53 9 Lady Amber 3 58.0 9 11.70 8.5 - 53 53 +53 99 Beautiful One 2 58.0 99 0.00 0.0 - 70 70 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Playful Joules Line | 74 | 62 | 74 | -12 | 0.0 | ||
| 2 | Laydelay | - | 76 | 75 | +1 | 0.0 | - | |
| 3 | Calanque | - | 90 | 56 | +34 | 8.5 | - | |
| 4 | La Patrona | - | 78 | 72 | +6 | 0.0 | - | |
| 5 | Lark's Song | - | 78 | 54 | +24 | 8.5 | - | |
| 6 | Surely Not | - | 60 | 51 | +9 | 8.5 | - | |
| 7 | Autumn Rush | - | 68 | 53 | +15 | 8.5 | - | |
| 8 | Redlight Lane | - | 73 | 53 | +20 | 8.5 | - | |
| 9 | Lady Amber | - | 50 | 53 | -3 | 8.5 | - | |
| 99 | Beautiful One | - | 69 | 70 | -1 | 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