Official NHA Assessment
Race 4: DStv GOLD VASE (Grade 3) (For all horses)
Line Horse
One Way Traffic
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
2 / 16
Within 2 points
Significant Diffs
9 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Madison Valley 4 52.0 1 0.00 1.5 88 89 89 +1 2 Shoot The Rapids 4 55.5 2 0.40 1.5 99 102 102 +3 3 Nebraas 8 60.0 3 1.90 0.0 106 112 112 +6 4 One Way Traffic 4 60.0 4 2.20 1.5 109 109 109 +0 5 None Other 5 57.5 5 2.25 0.0 110 107 107 -3 6 Danse Milord 3 53.0 6 2.75 3.5 94 90 90 -4 7 Down To Business 2 58.5 7 3.55 0.0 101 107 107 +6 8 Breeze Over 5 57.0 8 4.95 0.0 97 102 102 +5 9 Indian Ocean 3 53.0 9 5.45 3.5 95 87 87 -8 10 Explosive Bond 4 53.0 10 5.50 1.5 100 91 91 -9 11 Raiseahallelujah 7 58.5 11 5.55 0.0 101 105 105 +4 12 Basie Raakvat 4 51.5 12 7.05 1.5 70 88 88 +18 13 Prime Example 2 54.0 13 7.55 0.0 89 96 96 +7 14 Taxhaven 4 51.5 14 8.75 1.5 74 88 88 +14 15 Rock Fall 2 52.0 15 9.00 0.0 81 92 92 +11 99 Pirate Prince 2 55.5 99 0.00 0.0 - 99 99 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Madison Valley | 88 | 116 | 89 | +27 | 1.5 | - | |
| 2 | Shoot The Rapids | 99 | 117 | 102 | +15 | 1.5 | - | |
| 3 | Nebraas | 106 | 101 | 112 | -11 | 0.0 | - | |
| 4 | One Way Traffic Line | 109 | 109 | 109 | ✓ Match | 1.5 | ||
| 5 | None Other | 110 | 115 | 107 | +8 | 0.0 | - | |
| 6 | Danse Milord | 94 | 94 | 90 | +4 | 3.5 | - | |
| 7 | Down To Business | 101 | 100 | 107 | -7 | 0.0 | - | |
| 8 | Breeze Over | 97 | 99 | 102 | -3 | 0.0 | - | |
| 9 | Indian Ocean | 95 | 107 | 87 | +20 | 3.5 | - | |
| 10 | Explosive Bond | 100 | 94 | 91 | +3 | 1.5 | - | |
| 11 | Raiseahallelujah | 101 | 103 | 105 | -2 | 0.0 | - | |
| 12 | Basie Raakvat | 70 | 63 | 88 | -25 | 1.5 | - | |
| 13 | Prime Example | 89 | 93 | 96 | -3 | 0.0 | - | |
| 14 | Taxhaven | 74 | 96 | 88 | +8 | 1.5 | - | |
| 15 | Rock Fall | 81 | 80 | 92 | -12 | 0.0 | - | |
| 99 | Pirate Prince | - | 94 | 99 | -5 | 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