Official NHA Assessment
Race 3: #THISISRACING MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Arion Of Adrast
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Arion Of Adrast 3 60.0 1 0.00 4.0 64 64 64 +0 2 Lauretta Mia 3 60.0 2 0.25 4.0 61 64 64 +3 3 Silver Slippers 3 60.0 3 0.35 4.0 64 69 69 +5 4 Passion Fantacy 3 60.0 4 3.60 4.0 58 65 65 +7 5 Eshraaq 3 60.0 5 5.60 4.0 62 64 64 +2 6 Colorama 6 60.0 6 6.10 0.0 61 72 72 +11 7 Empress Ki 4 60.0 7 6.35 2.0 - 68 68 +68 8 Route Sixty Six 3 57.5 8 9.10 4.0 65 59 59 -6 9 A Foreign Affair 3 60.0 9 11.35 4.0 58 64 64 +6 10 Fort Snow 4 60.0 10 15.10 2.0 52 68 68 +16 11 Different Drum 3 60.0 11 33.10 4.0 60 64 64 +4 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Arion Of Adrast Line | 64 | 42 | 64 | -22 | 4.0 | ||
| 2 | Lauretta Mia | 61 | 63 | 64 | -1 | 4.0 | - | |
| 3 | Silver Slippers | 64 | 63 | 69 | -6 | 4.0 | - | |
| 4 | Passion Fantacy | 58 | 56 | 65 | -9 | 4.0 | - | |
| 5 | Eshraaq | 62 | 59 | 64 | -5 | 4.0 | - | |
| 6 | Colorama | 61 | 54 | 72 | -18 | 0.0 | - | |
| 7 | Empress Ki | - | 27 | 68 | -41 | 2.0 | - | |
| 8 | Route Sixty Six | 65 | 56 | 59 | -3 | 4.0 | - | |
| 9 | A Foreign Affair | 58 | 49 | 64 | -15 | 4.0 | - | |
| 10 | Fort Snow | 52 | 42 | 68 | -26 | 2.0 | - | |
| 11 | Different Drum | 60 | 47 | 64 | -17 | 4.0 | - |
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