Official NHA Assessment
Race 5: PG INDUSTRIES PINNACLE PLATE 105 (Race for all horses.)
Line Horse
Jet Mirage
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
0 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Var Aglow 5 52.0 1 0.00 0.0 82 91 88 +6 2 Jet Mirage 3 60.0 2 0.10 3.5 100 100 100 +0 3 Action Zone 3 56.0 3 0.35 3.5 90 92 92 +2 4 Majestic Warrior 2 54.0 4 1.10 2.5 86 90 90 +4 99 Tom's Diner 4 56.0 99 0.00 4.0 - 91 91 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Var Aglow | 82 | 84 | 88 | -4 | 0.0 | - | |
| 2 | Jet Mirage Line | 100 | 100 | 100 | ✓ Match | 3.5 | ||
| 3 | Action Zone | 90 | 90 | 92 | -2 | 3.5 | - | |
| 4 | Majestic Warrior | 86 | 86 | 90 | -4 | 2.5 | - | |
| 99 | Tom's Diner | - | 94 | 91 | +3 | 4.0 | - |
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