Official NHA Assessment
Race 2: MERIT RATED 70 HANDICAP (Open)
Line Horse
Ian's Ferrari
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
3 / 4
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Prince Of Kimberly 3 58.5 1 0.00 9.0 69 64 69 +0 2 Ian's Ferrari 3 60.0 2 2.00 9.0 70 70 70 +0 3 Zazu 6 60.0 3 2.25 0.0 70 88 88 +18 4 My Secret Place 5 58.0 4 7.25 0.0 68 81 81 +13 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Prince Of Kimberly | 69 | 73 | 69 | +4 | 9.0 | - | |
| 2 | Ian's Ferrari Line | 70 | 63 | 70 | -7 | 9.0 | ||
| 3 | Zazu | 70 | 71 | 88 | -17 | 0.0 | - | |
| 4 | My Secret Place | 68 | 71 | 81 | -10 | 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