Official NHA Assessment
Race 3: MERIT RATED 73 HANDICAP (Open)
Line Horse
Cutback
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
4 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Regulate 3 60.0 1 0.00 7.0 73 55 73 +0 2 Cutback 6 56.5 2 1.25 0.0 66 66 66 +0 3 Power Ranger 7 55.0 3 1.50 0.0 63 62 62 -1 4 Walking Thru Time 3 59.5 4 2.00 7.0 73 57 63 -10 5 Bruce's Spirit 6 57.0 5 3.75 0.0 67 64 64 -3 6 Days Gone By 3 52.0 6 5.50 7.0 57 39 47 -10 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Regulate | 73 | 79 | 73 | +6 | 7.0 | - | |
| 2 | Cutback Line | 66 | 63 | 66 | -3 | 0.0 | ||
| 3 | Power Ranger | 63 | 69 | 62 | +7 | 0.0 | - | |
| 4 | Walking Thru Time | 73 | 73 | 63 | +10 | 7.0 | - | |
| 5 | Bruce's Spirit | 67 | 55 | 64 | -9 | 0.0 | - | |
| 6 | Days Gone By | 57 | 51 | 47 | +4 | 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