Official NHA Assessment
Race 5: TAB TELEBET 0861 000 822 GRADUATION PLATE (For Maidens, 1 & 2 Time Winners)
Line Horse
Drivelikeamaster
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Bjorn Ironside 2 60.0 1 0.00 0.0 105 89 89 -16 2 Drivelikeamaster 3 57.0 2 0.75 3.0 81 81 81 +0 3 Father Christmas 3 60.0 3 2.00 3.0 79 86 86 +7 4 Zip Code 3 56.5 4 5.00 3.0 79 76 76 -3 5 World Heritage 2 49.5 5 8.30 0.0 55 68 68 +13 99 Tintin 3 60.0 99 0.00 3.0 - 83 83 +0 99 Got The Feeling 2 60.0 99 0.00 0.0 - 89 89 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Bjorn Ironside | 105 | 105 | 89 | +16 | 0.0 | - | |
| 2 | Drivelikeamaster Line | 81 | 81 | 81 | ✓ Match | 3.0 | ||
| 3 | Father Christmas | 79 | 79 | 86 | -7 | 3.0 | - | |
| 4 | Zip Code | 79 | 77 | 76 | +1 | 3.0 | - | |
| 5 | World Heritage | 55 | 55 | 68 | -13 | 0.0 | - | |
| 99 | Tintin | - | 88 | 83 | +5 | 3.0 | - | |
| 99 | Got The Feeling | - | 90 | 89 | +1 | 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