Official NHA Assessment
Race 2: 4RACING.TV PINNACLE STAKES (For all horses)
Line Horse
Imperial Ruby
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
3 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Jaimala 4 52.0 1 0.00 6.0 98 83 83 -15 2 Bold Fortune 4 50.5 2 0.80 6.0 105 84 95 -10 3 Imperial Ruby 5 56.0 3 1.00 0.0 107 107 107 +0 4 Outofthedarkness 3 54.5 4 1.25 9.5 106 85 96 -10 5 Second Base 4 60.0 5 2.00 6.0 117 102 107 -10 99 Shivers 5 50.0 99 0.00 0.0 - 91 91 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Jaimala | 98 | 101 | 83 | +18 | 6.0 | - | |
| 2 | Bold Fortune | 105 | 83 | 95 | -12 | 6.0 | - | |
| 3 | Imperial Ruby Line | 107 | 105 | 107 | -2 | 0.0 | ||
| 4 | Outofthedarkness | 106 | 101 | 96 | +5 | 9.5 | - | |
| 5 | Second Base | 117 | 99 | 107 | -8 | 6.0 | - | |
| 99 | Shivers | - | 93 | 91 | +2 | 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