Official NHA Assessment
Race 8: WSB LIVE CASINO HYBRID STAKES (Open)
Line Horse
Barney Mcgrew
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Surjay 3 53.0 1 0.00 2.0 94 93 93 -1 2 Resonate 3 60.0 2 1.25 2.0 108 107 107 -1 3 Barney Mcgrew 4 52.0 3 4.25 2.5 90 90 90 +0 4 Double Charge 5 54.0 4 4.65 0.0 93 99 99 +6 5 Speed Machine 4 60.0 5 4.70 2.5 108 106 106 -2 6 Rockin' Ringo 6 58.5 6 7.20 0.0 103 108 108 +5 7 Transact 3 52.0 7 10.70 2.0 82 91 91 +9 8 Worlds Your Oyster 5 58.5 8 13.20 0.0 103 108 108 +5 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Surjay | 94 | 121 | 93 | +28 | 2.0 | - | |
| 2 | Resonate | 108 | 103 | 107 | -4 | 2.0 | - | |
| 3 | Barney Mcgrew Line | 90 | 69 | 90 | -21 | 2.5 | ||
| 4 | Double Charge | 93 | 80 | 99 | -19 | 0.0 | - | |
| 5 | Speed Machine | 108 | 104 | 106 | -2 | 2.5 | - | |
| 6 | Rockin' Ringo | 103 | 107 | 108 | -1 | 0.0 | - | |
| 7 | Transact | 82 | 77 | 91 | -14 | 2.0 | - | |
| 8 | Worlds Your Oyster | 103 | 95 | 108 | -13 | 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