Official NHA Assessment
Race 3: CALL THE WIND CLASSIFIED STAKES (For horses with nett rating of 77 and below)
Line Horse
Red Top
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
3 / 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 Tom's Diner 4 60.0 1 0.00 5.0 76 67 67 -9 2 Red Top 5 60.0 2 14.00 0.0 77 77 77 +0 3 Kallipos 3 58.5 3 23.00 4.5 74 65 65 -9 4 Nandine 3 54.5 4 99.00 4.5 70 57 60 -10 99 Gypsy Express 5 51.5 99 0.00 0.0 - 60 60 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Tom's Diner | 76 | 94 | 67 | +27 | 5.0 | - | |
| 2 | Red Top Line | 77 | 70 | 77 | -7 | 0.0 | ||
| 3 | Kallipos | 74 | 63 | 65 | -2 | 4.5 | - | |
| 4 | Nandine | 70 | 60 | 60 | ✓ Match | 4.5 | - | |
| 99 | Gypsy Express | - | 58 | 60 | -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