Official NHA Assessment
Race 2: #YOUCANBETONUS! MAIDEN HANDICAP (For Maidens with 3 or more runs)
Line Horse
Carnarvon
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
2 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 King Bluetooth 2 54.0 1 0.00 7.0 68 68 68 +0 2 Underdog 3 53.0 2 3.10 10.5 52 59 59 +7 3 Storm Burst 2 52.0 3 3.30 7.0 62 64 64 +2 4 Carnarvon 2 60.0 4 3.90 7.0 80 80 80 +0 5 Captain Frank 2 58.5 5 5.90 7.0 77 77 77 +0 6 New Life 3 55.5 6 6.10 10.5 57 64 64 +7 7 Sassy Lassie 2 52.0 7 10.80 7.0 56 64 64 +8 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | King Bluetooth | 68 | 53 | 68 | -15 | 7.0 | - | |
| 2 | Underdog | 52 | 58 | 59 | -1 | 10.5 | - | |
| 3 | Storm Burst | 62 | 63 | 64 | -1 | 7.0 | - | |
| 4 | Carnarvon Line | 80 | 78 | 80 | -2 | 7.0 | ||
| 5 | Captain Frank | 77 | 72 | 77 | -5 | 7.0 | - | |
| 6 | New Life | 57 | 38 | 64 | -26 | 10.5 | - | |
| 7 | Sassy Lassie | 56 | 59 | 64 | -5 | 7.0 | - |
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