Official NHA Assessment
Race 6: ROUND TABLE GOLD CUP SPRINT (Grade 3) (Open)
Line Horse
Tom's Diner
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
2 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Jet Mirage 3 58.5 1 0.00 6.0 98 100 100 +2 2 Tom's Diner 4 54.5 2 0.25 7.0 90 90 90 +0 3 Var Aglow 5 52.0 3 3.25 0.0 85 99 99 +14 4 Ideal View 6 55.0 4 10.25 0.0 91 105 105 +14 99 Outofthedarkness 3 60.0 99 0.00 6.0 - 103 103 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Jet Mirage | 98 | 100 | 100 | ✓ Match | 6.0 | - | |
| 2 | Tom's Diner Line | 90 | 94 | 90 | +4 | 7.0 | ||
| 3 | Var Aglow | 85 | 84 | 99 | -15 | 0.0 | - | |
| 4 | Ideal View | 91 | 90 | 105 | -15 | 0.0 | - | |
| 99 | Outofthedarkness | - | 101 | 103 | -2 | 6.0 | - |
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