Official NHA Assessment
Race 5: BOOK A TABLE CALL 011-681-1796 MR 84 HANDICAP (Open)
Line Horse
Umthombo Wolwazi
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
2 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Mover And Shaker 5 58.0 1 0.00 0.0 87 94 87 +0 2 Umthombo Wolwazi 2 58.5 2 1.20 3.5 88 88 88 +0 3 Set To Go 2 59.0 3 1.25 3.5 89 89 89 +0 4 Bronco Blitz 3 58.5 4 8.00 5.0 81 85 85 +4 5 Quick Breeze 3 57.5 5 9.20 5.0 84 83 83 -1 6 Tre Amici 2 52.5 6 9.25 3.5 76 76 76 +0 99 Arbitrator 2 55.5 99 0.00 3.5 - 82 82 +0 99 Ridgerunner 2 59.5 99 0.00 3.5 - 90 90 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Mover And Shaker | 87 | 109 | 87 | +22 | 0.0 | - | |
| 2 | Umthombo Wolwazi Line | 88 | 91 | 88 | +3 | 3.5 | ||
| 3 | Set To Go | 89 | 84 | 89 | -5 | 3.5 | - | |
| 4 | Bronco Blitz | 81 | 80 | 85 | -5 | 5.0 | - | |
| 5 | Quick Breeze | 84 | 79 | 83 | -4 | 5.0 | - | |
| 6 | Tre Amici | 76 | 64 | 76 | -12 | 3.5 | - | |
| 99 | Arbitrator | - | 82 | 82 | ✓ Match | 3.5 | - | |
| 99 | Ridgerunner | - | 90 | 90 | ✓ Match | 3.5 | - |
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