Official NHA Assessment
Race 1: BSA CAPE YEARLING SALE GRADUATION PLATE (Maidens,1 & 2 time winners)
Line Horse
Count Moderna
Reference for assessment
Exact Matches
2 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
2 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Power Ranger 7 60.0 1 0.00 0.0 63 73 69 +6 2 Count Moderna 3 56.5 2 7.00 6.0 54 54 54 +0 3 Aerial Display 5 59.5 3 10.00 0.0 77 72 72 -5 4 Bird In Space 2 55.0 4 10.75 4.0 66 55 56 -10 5 Pair Of Aces 4 57.0 5 13.75 7.0 58 53 53 -5 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Power Ranger | 63 | 69 | 69 | ✓ Match | 0.0 | - | |
| 2 | Count Moderna Line | 54 | 54 | 54 | ✓ Match | 6.0 | ||
| 3 | Aerial Display | 77 | 68 | 72 | -4 | 0.0 | - | |
| 4 | Bird In Space | 66 | 66 | 56 | +10 | 4.0 | - | |
| 5 | Pair Of Aces | 58 | 39 | 53 | -14 | 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