Official NHA Assessment
Race 4: PINNACLE PLATE (85) (Race for all horses)
Line Horse
Power Ranger
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
4 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Magic Exists 3 58.5 1 0.00 1.5 81 71 71 -10 2 Power Ranger 7 58.5 2 2.00 0.0 77 77 77 +0 3 Prince Of Denmark 4 54.0 3 2.05 0.5 64 67 67 +3 4 Aerial Display 5 60.0 4 3.55 0.0 83 78 78 -5 5 Karvani 7 60.0 5 7.55 0.0 83 77 77 -6 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Magic Exists | 81 | 91 | 71 | +20 | 1.5 | - | |
| 2 | Power Ranger Line | 77 | 69 | 77 | -8 | 0.0 | ||
| 3 | Prince Of Denmark | 64 | 51 | 67 | -16 | 0.5 | - | |
| 4 | Aerial Display | 83 | 68 | 78 | -10 | 0.0 | - | |
| 5 | Karvani | 83 | 73 | 77 | -4 | 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