Official NHA Assessment
Race 4: CLASSIFIED STAKES (For horses with nett rating of 71 and below)
Line Horse
Tigers Eagle
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 Walking Thru Time 3 60.0 1 0.00 7.0 69 67 67 -2 2 Tigers Eagle 3 60.0 2 1.00 7.0 71 71 71 +0 3 Cutback 6 58.5 3 2.00 0.0 67 81 81 +14 4 Ian's Ferrari 3 60.0 4 2.05 7.0 70 70 70 +0 5 Eastern World 3 52.5 5 2.80 7.0 54 54 54 +0 99 Nandine 3 54.0 99 0.00 7.0 - 55 55 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Walking Thru Time | 69 | 73 | 67 | +6 | 7.0 | - | |
| 2 | Tigers Eagle Line | 71 | 79 | 71 | +8 | 7.0 | ||
| 3 | Cutback | 67 | 63 | 81 | -18 | 0.0 | - | |
| 4 | Ian's Ferrari | 70 | 63 | 70 | -7 | 7.0 | - | |
| 5 | Eastern World | 54 | 52 | 54 | -2 | 7.0 | - | |
| 99 | Nandine | - | 60 | 55 | +5 | 7.0 | - |
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