Official NHA Assessment
Race 2: ROUND TABLE BUFFALO CHARGE MERIT RATED 70 HANDICAP (Open)
Line Horse
Karvani
Reference for assessment
Exact Matches
1 / 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 Bruce's Spirit 6 56.0 1 0.00 0.0 62 58 62 +0 2 Duchess Of War 2 54.5 2 0.25 0.0 59 55 55 -4 3 Karvani 7 56.0 3 1.00 0.0 62 62 62 +0 4 Follow The Band 2 52.0 4 3.00 0.0 56 52 52 -4 5 Walking Thru Time 3 61.5 5 3.00 1.5 73 68 68 -5 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Bruce's Spirit | 62 | 55 | 62 | -7 | 0.0 | - | |
| 2 | Duchess Of War | 59 | 55 | 55 | ✓ Match | 0.0 | - | |
| 3 | Karvani Line | 62 | 73 | 62 | +11 | 0.0 | ||
| 4 | Follow The Band | 56 | 53 | 52 | +1 | 0.0 | - | |
| 5 | Walking Thru Time | 73 | 73 | 68 | +5 | 1.5 | - |
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