Official NHA Assessment
Race 4: BETWAY MR 68 HANDICAP (Open)
Line Horse
Flag Bearer
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
5 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Eiger Sanction 3 60.0 1 0.00 9.5 70 74 70 +0 2 Callaburn 2 58.5 2 2.00 0.0 67 93 93 +26 3 Flag Bearer 3 51.5 3 2.50 9.5 59 59 59 +0 4 Streisand 3 58.5 4 5.00 9.5 84 71 74 -10 5 Rainy Season 4 52.5 5 5.50 6.0 53 66 66 +13 6 Guerilla Warfare 3 59.5 6 26.75 9.5 86 73 76 -10 99 Azucar 3 53.5 99 0.00 9.5 - 61 61 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Eiger Sanction | 70 | 79 | 70 | +9 | 9.5 | - | |
| 2 | Callaburn | 67 | 52 | 93 | -41 | 0.0 | - | |
| 3 | Flag Bearer Line | 59 | 60 | 59 | +1 | 9.5 | ||
| 4 | Streisand | 84 | 86 | 74 | +12 | 9.5 | - | |
| 5 | Rainy Season | 53 | 56 | 66 | -10 | 6.0 | - | |
| 6 | Guerilla Warfare | 86 | 75 | 76 | -1 | 9.5 | - | |
| 99 | Azucar | - | 53 | 61 | -8 | 9.5 | - |
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