Official NHA Assessment
Race 2: COME RACING AT BORROWDALE PARK MERIT RATED 73 HANDICAP (Open)
Line Horse
Ian's Ferrari
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
5 / 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 73 70 73 +0 2 Ian's Ferrari 3 60.0 2 5.00 1.5 73 73 73 +0 3 Prince Of Denmark 4 55.5 3 6.00 0.5 64 66 66 +2 4 Bruce's Spirit 6 56.5 4 11.00 0.0 66 69 69 +3 5 Gypsy Express 5 57.5 5 12.25 0.0 68 71 71 +3 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Magic Exists | 73 | 91 | 73 | +18 | 1.5 | - | |
| 2 | Ian's Ferrari Line | 73 | 63 | 73 | -10 | 1.5 | ||
| 3 | Prince Of Denmark | 64 | 51 | 66 | -15 | 0.5 | - | |
| 4 | Bruce's Spirit | 66 | 55 | 69 | -14 | 0.0 | - | |
| 5 | Gypsy Express | 68 | 58 | 71 | -13 | 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