Official NHA Assessment
Race 2: MWOS FC MIDDLE STAKES (For horses with nett rating of 92 and below)
Line Horse
Emerald Floe
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
4 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Varnica 5 57.5 1 0.00 0.0 89 101 95 +6 2 Emerald Floe 4 57.5 2 0.25 5.0 91 91 91 +0 3 Mind Master 4 56.0 3 1.75 5.0 78 88 88 +10 4 Brianna 4 55.5 4 3.75 5.0 84 87 87 +3 5 Citrusdal 8 58.0 5 6.25 0.0 83 102 102 +19 99 Oden 6 60.0 99 0.00 0.0 - 106 106 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Varnica | 89 | 90 | 95 | -5 | 0.0 | - | |
| 2 | Emerald Floe Line | 91 | 82 | 91 | -9 | 5.0 | ||
| 3 | Mind Master | 78 | 87 | 88 | -1 | 5.0 | - | |
| 4 | Brianna | 84 | 103 | 87 | +16 | 5.0 | - | |
| 5 | Citrusdal | 83 | 81 | 102 | -21 | 0.0 | - | |
| 99 | Oden | - | 88 | 106 | -18 | 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