Official NHA Assessment
Race 3: JOIN ZIMFUN RACING CLUB MERIT RATED 83 HANDICAP (Open)
Line Horse
Aerial Display
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
2 / 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 Magic Exists 3 60.0 1 0.00 7.0 85 66 85 +0 2 September Flower 2 59.5 2 0.75 0.0 84 85 85 +1 3 Kagura 4 53.0 3 0.80 3.5 71 65 65 -6 4 Aerial Display 5 53.0 4 3.10 0.0 69 69 69 +0 5 King's Crown 3 54.5 5 3.15 7.0 74 58 64 -10 6 My Secret Place 5 55.0 6 4.90 0.0 73 70 70 -3 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Magic Exists | 85 | 91 | 85 | +6 | 7.0 | - | |
| 2 | September Flower | 84 | 91 | 85 | +6 | 0.0 | - | |
| 3 | Kagura | 71 | 72 | 65 | +7 | 3.5 | - | |
| 4 | Aerial Display Line | 69 | 68 | 69 | -1 | 0.0 | ||
| 5 | King's Crown | 74 | 79 | 64 | +15 | 7.0 | - | |
| 6 | My Secret Place | 73 | 71 | 70 | +1 | 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