Official NHA Assessment
Race 3: MERIT RATED 65 HANDICAP (Open)
Line Horse
Qunetra
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 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 Sun Bird 3 59.0 1 0.00 4.5 62 53 62 +0 2 Qunetra 4 56.5 2 1.25 2.0 57 57 57 +0 3 Chetan 3 52.0 3 3.75 4.5 46 40 40 -6 4 Days Gone By 3 56.0 4 6.75 4.5 56 47 47 -9 5 Testify 2 60.0 5 7.75 0.0 73 64 64 -9 99 Prince Of Kimberly 3 56.5 99 0.00 4.5 - 48 48 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Sun Bird | 62 | 87 | 62 | +25 | 4.5 | - | |
| 2 | Qunetra Line | 57 | 83 | 57 | +26 | 2.0 | ||
| 3 | Chetan | 46 | 45 | 40 | +5 | 4.5 | - | |
| 4 | Days Gone By | 56 | 51 | 47 | +4 | 4.5 | - | |
| 5 | Testify | 73 | 71 | 64 | +7 | 0.0 | - | |
| 99 | Prince Of Kimberly | - | 73 | 48 | +25 | 4.5 | - |
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