Official NHA Assessment
Race 2: IBHAYI STAKES (Listed) (For 3 year-olds (1st Leg EC Sophomore Chall))
Line Horse
Buffalo Bill
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
1 / 5
Within 2 points
Significant Diffs
3 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Buffalo Bill 2 60.0 1 0.00 0.0 107 107 107 +0 2 Royal Kingdom 2 60.0 2 2.25 0.0 103 110 110 +7 3 Pomp It Up 2 60.0 3 2.35 0.0 95 109 109 +14 4 Silva City 2 58.0 4 4.60 0.0 99 103 103 +4 99 Smiddyburn 3 60.0 99 0.00 3.0 - 101 101 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Buffalo Bill Line | 107 | 107 | 107 | ✓ Match | 0.0 | ||
| 2 | Royal Kingdom | 103 | 103 | 110 | -7 | 0.0 | - | |
| 3 | Pomp It Up | 95 | 95 | 109 | -14 | 0.0 | - | |
| 4 | Silva City | 99 | 99 | 103 | -4 | 0.0 | - | |
| 99 | Smiddyburn | - | 77 | 101 | -24 | 3.0 | - |
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