Official NHA Assessment
Race 2: PROPERTY X BORROWDALE D STAKES 68 (For All Horses with a nett rating of 68 & below)
Line Horse
Audacious
Reference for assessment
Exact Matches
0 / 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 Royal Lytham 4 59.0 1 0.00 1.5 64 60 60 -4 2 Whereverilaymyhat 4 60.0 2 1.25 1.5 60 66 66 +6 3 Audacious 2 57.5 3 2.50 0.0 62 62 62 +0 4 Battle Of Seattle 2 60.0 4 8.20 0.0 61 65 65 +4 5 Copper Fire 3 57.5 5 99.99 2.5 61 55 55 -6 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Royal Lytham | 64 | 69 | 60 | +9 | 1.5 | - | |
| 2 | Whereverilaymyhat | 60 | 68 | 66 | +2 | 1.5 | - | |
| 3 | Audacious Line | 62 | 61 | 62 | -1 | 0.0 | ||
| 4 | Battle Of Seattle | 61 | 59 | 65 | -6 | 0.0 | - | |
| 5 | Copper Fire | 61 | 60 | 55 | +5 | 2.5 | - |
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