Official NHA Assessment
Race 5: FOR HOSPITALITY BOOKINGS CALL 0116811796 MAIDEN PLATE (For all Maidens)
Line Horse
Chieftain's Shield
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 The Ultimate King 3 60.0 1 0.00 3.5 76 63 63 -13 2 Chieftain's Shield 4 57.5 2 2.40 1.5 64 64 64 +0 3 Blurred Vision 3 60.0 3 4.00 3.5 67 64 64 -3 4 Follow The Master 3 60.0 4 4.30 3.5 66 63 63 -3 5 Gold De Grace 4 60.0 5 8.50 1.5 57 67 67 +10 6 Urquhart Castle 4 60.0 6 9.25 1.5 30 67 67 +37 99 Future King 3 60.0 99 0.00 3.5 - 63 63 +0 99 Seventh Fleet 3 60.0 99 0.00 3.5 - 63 63 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | The Ultimate King | 76 | 117 | 63 | +54 | 3.5 | - | |
| 2 | Chieftain's Shield Line | 64 | 80 | 64 | +16 | 1.5 | ||
| 3 | Blurred Vision | 67 | 56 | 64 | -8 | 3.5 | - | |
| 4 | Follow The Master | 66 | 82 | 63 | +19 | 3.5 | - | |
| 5 | Gold De Grace | 57 | 51 | 67 | -16 | 1.5 | - | |
| 6 | Urquhart Castle | 30 | 37 | 67 | -30 | 1.5 | - | |
| 99 | Future King | - | 66 | 63 | +3 | 3.5 | - | |
| 99 | Seventh Fleet | - | 66 | 63 | +3 | 3.5 | - |
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