Official NHA Assessment
Race 4: 4RACING.TV MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Chopsticks
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Manhattan 3 60.0 1 0.00 1.5 - 66 6 +6 2 Special Charm 3 60.0 2 0.40 1.5 58 71 71 +13 3 Chopsticks 3 60.0 3 0.90 1.5 70 70 70 +0 4 Rosslyne 2 56.0 4 2.00 0.0 - 64 64 +64 5 Batik 3 60.0 5 9.00 1.5 51 66 66 +15 6 Feel The Magic 2 56.0 6 26.00 0.0 - 61 61 +61 99 Starlit Strip 3 60.0 99 0.00 1.5 - 66 66 +0 99 Five Fortunes 3 60.0 99 0.00 1.5 - 66 66 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Manhattan | - | 68 | 6 | +62 | 1.5 | - | |
| 2 | Special Charm | 58 | 104 | 71 | +33 | 1.5 | - | |
| 3 | Chopsticks Line | 70 | 59 | 70 | -11 | 1.5 | ||
| 4 | Rosslyne | - | 58 | 64 | -6 | 0.0 | - | |
| 5 | Batik | 51 | 57 | 66 | -9 | 1.5 | - | |
| 6 | Feel The Magic | - | 30 | 61 | -31 | 0.0 | - | |
| 99 | Starlit Strip | - | 45 | 66 | -21 | 1.5 | - | |
| 99 | Five Fortunes | - | 53 | 66 | -13 | 1.5 | - |
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