Official NHA Assessment
Race 2: RACING TODAY GRADUATION PLATE (For Maidens, 1 & 2 Time Winners)
Line Horse
Kaalvoet
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 The Last Duke 2 60.0 1 0.00 3.5 96 103 102 +6 2 Zalatoris 2 60.0 2 0.30 3.5 105 103 103 -2 3 Believe In Fate 2 56.5 3 0.80 3.5 85 96 96 +11 4 Kaalvoet 2 56.0 4 1.20 3.5 95 95 95 +0 5 Chapbook 2 58.5 5 6.30 3.5 100 100 100 +0 99 Umzingeli Wenyathi 2 60.0 99 0.00 3.5 - 103 103 +0 99 Mariachi Madness 2 58.0 99 0.00 3.5 - 99 99 +0 99 Antonio Gaudi 2 56.0 99 0.00 3.5 - 95 95 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | The Last Duke | 96 | 102 | 102 | ✓ Match | 3.5 | - | |
| 2 | Zalatoris | 105 | 108 | 103 | +5 | 3.5 | - | |
| 3 | Believe In Fate | 85 | 85 | 96 | -11 | 3.5 | - | |
| 4 | Kaalvoet Line | 95 | 93 | 95 | -2 | 3.5 | ||
| 5 | Chapbook | 100 | 106 | 100 | +6 | 3.5 | - | |
| 99 | Umzingeli Wenyathi | - | 90 | 103 | -13 | 3.5 | - | |
| 99 | Mariachi Madness | - | 57 | 99 | -42 | 3.5 | - | |
| 99 | Antonio Gaudi | - | 82 | 95 | -13 | 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