Official NHA Assessment
Race 1: MWOS LUCKY NUMBERS MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)
Line Horse
Montanna Bay
Reference for assessment
Exact Matches
1 / 5
Calculated = Official
Close Matches
1 / 5
Within 2 points
Significant Diffs
3 / 5
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Red Top 5 60.0 1 0.00 0.0 62 63 63 +1 2 Montanna Bay 2 57.5 2 4.00 3.5 51 51 51 +0 3 Walking Thru Time 3 57.5 3 5.50 5.0 54 48 48 -6 4 Etsa Moralo 3 60.0 4 9.50 5.0 - 53 53 +53 5 Evocative 3 57.5 5 24.50 5.0 - 48 48 +48 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Red Top | 62 | 70 | 63 | +7 | 0.0 | - | |
| 2 | Montanna Bay Line | 51 | 51 | 51 | ✓ Match | 3.5 | ||
| 3 | Walking Thru Time | 54 | 73 | 48 | +25 | 5.0 | - | |
| 4 | Etsa Moralo | - | 36 | 53 | -17 | 5.0 | - | |
| 5 | Evocative | - | 44 | 48 | -4 | 5.0 | - |
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