Official NHA Assessment
Race 8: WWW.TAB4RACING.COM CLASSIFIED STAKES (For All Horses)
Line Horse
King Viserys
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
5 / 13
Within 2 points
Significant Diffs
1 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Dynalley 2 62.0 1 0.00 0.0 78 83 83 +5 2 King Viserys 4 57.5 2 2.25 2.0 73 73 73 +0 3 Flight Engineer 3 54.0 3 2.35 3.0 59 63 63 +4 4 King's Sailor 3 58.0 4 3.10 3.0 67 71 71 +4 5 Nautical Landing 3 50.0 5 3.20 3.0 63 55 55 -8 6 Das Gute 4 59.5 6 4.45 2.0 78 74 74 -4 7 Silvery Surfer 3 60.0 7 4.95 3.0 74 73 73 -1 8 Izanami 3 58.0 8 6.20 3.0 72 69 69 -3 9 Guarding The Wall 4 58.0 9 8.20 2.0 67 71 71 +4 10 Globetonic 6 58.0 10 9.70 0.0 70 75 75 +5 11 King Celtillus 3 58.0 11 10.20 3.0 70 69 69 -1 12 Arlu 2 56.0 12 12.45 0.0 71 71 71 +0 99 Hat Trick Or Treat 2 57.0 99 0.00 0.0 - 73 73 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Dynalley | 78 | 82 | 83 | -1 | 0.0 | - | |
| 2 | King Viserys Line | 73 | 73 | 73 | ✓ Match | 2.0 | ||
| 3 | Flight Engineer | 59 | 58 | 63 | -5 | 3.0 | - | |
| 4 | King's Sailor | 67 | 67 | 71 | -4 | 3.0 | - | |
| 5 | Nautical Landing | 63 | 63 | 55 | +8 | 3.0 | - | |
| 6 | Das Gute | 78 | 77 | 74 | +3 | 2.0 | - | |
| 7 | Silvery Surfer | 74 | 72 | 73 | -1 | 3.0 | - | |
| 8 | Izanami | 72 | 72 | 69 | +3 | 3.0 | - | |
| 9 | Guarding The Wall | 67 | 67 | 71 | -4 | 2.0 | - | |
| 10 | Globetonic | 70 | 77 | 75 | +2 | 0.0 | - | |
| 11 | King Celtillus | 70 | 70 | 69 | +1 | 3.0 | - | |
| 12 | Arlu | 71 | 68 | 71 | -3 | 0.0 | - | |
| 99 | Hat Trick Or Treat | - | 76 | 73 | +3 | 0.0 | - |
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