Official NHA Assessment
Race 1: Hollywoodbets DURBANVILLE WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Blue Lagoon
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
13 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Calanque 3 58.0 1 0.00 8.0 - - - +0 2 William's Woman 3 54.0 2 2.00 8.0 - -5 - +0 3 Ebisu 2 58.0 3 3.75 0.0 - 17 17 +17 4 Gin Palace 2 58.0 4 4.15 0.0 - 17 17 +17 5 Blue Lagoon 3 58.0 5 4.45 8.0 - - - +0 6 Somebody Somewhere 3 58.0 6 4.55 8.0 - - - +0 7 Boozy Susie 3 58.0 7 4.60 8.0 - - - +0 8 Little Nimbus 3 58.0 8 7.85 8.0 - - - +0 9 Gold Gold Baby 3 58.0 9 8.35 8.0 - - - +0 10 Laydelay 2 58.0 10 8.40 0.0 - 16 16 +16 11 She's A Belter 3 58.0 11 12.15 8.0 - - - +0 12 Lifelong Dance 3 60.0 12 16.15 8.0 53 4 43 -10 13 Surely Not 3 58.0 13 19.15 8.0 - - - +0 99 Star World 2 58.0 99 0.00 0.0 - 16 16 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Calanque | - | 90 | - | +90 | 8.0 | - | |
| 2 | William's Woman | - | 71 | - | +71 | 8.0 | - | |
| 3 | Ebisu | - | 83 | 17 | +66 | 0.0 | - | |
| 4 | Gin Palace | - | 84 | 17 | +67 | 0.0 | - | |
| 5 | Blue Lagoon Line | - | 78 | - | +78 | 8.0 | ||
| 6 | Somebody Somewhere | - | 78 | - | +78 | 8.0 | - | |
| 7 | Boozy Susie | - | 82 | - | +82 | 8.0 | - | |
| 8 | Little Nimbus | - | 77 | - | +77 | 8.0 | - | |
| 9 | Gold Gold Baby | - | 73 | - | +73 | 8.0 | - | |
| 10 | Laydelay | - | 76 | 16 | +60 | 0.0 | - | |
| 11 | She's A Belter | - | - | - | ✓ Match | 8.0 | - | |
| 12 | Lifelong Dance | 53 | 53 | 43 | +10 | 8.0 | - | |
| 13 | Surely Not | - | 60 | - | +60 | 8.0 | - | |
| 99 | Star World | - | 82 | 16 | +66 | 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