Official NHA Assessment
Race 7: RACEHORSE OWNERS ASSOCIATION MR 74 HANDICAP (Open)
Line Horse
Sage King
Reference for assessment
Exact Matches
2 / 14
Calculated = Official
Close Matches
6 / 14
Within 2 points
Significant Diffs
8 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Tizona 3 60.0 1 0.00 3.0 74 73 74 +0 2 Vitellius 5 59.5 2 2.75 0.0 79 80 80 +1 3 Black Egret 3 60.0 3 3.50 3.0 80 74 74 -6 4 Sage King 3 58.0 4 3.65 3.0 70 70 70 +0 5 Mr Molony 3 57.0 5 4.50 3.0 68 67 67 -1 6 Vesuvio 5 59.0 6 4.75 0.0 78 77 77 -1 7 Flying Grace 4 57.5 7 5.00 1.5 69 71 71 +2 8 Mcebisi 4 57.5 8 5.10 1.5 69 71 71 +2 9 Splendid Season 2 58.0 9 7.00 0.0 76 75 75 -1 10 In Cahoots 6 58.5 10 7.75 0.0 74 76 76 +2 11 Letsdoit 3 59.5 11 12.50 3.0 78 72 72 -6 12 Ice Eater 6 54.0 12 16.00 0.0 62 67 67 +5 99 Bright Blue Sky 2 59.0 99 0.00 0.0 - 77 77 +0 99 Golden Spoon 4 61.0 99 0.00 1.5 - 78 78 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Tizona | 74 | 83 | 74 | +9 | 3.0 | - | |
| 2 | Vitellius | 79 | 73 | 80 | -7 | 0.0 | - | |
| 3 | Black Egret | 80 | 90 | 74 | +16 | 3.0 | - | |
| 4 | Sage King Line | 70 | 72 | 70 | +2 | 3.0 | ||
| 5 | Mr Molony | 68 | 67 | 67 | ✓ Match | 3.0 | - | |
| 6 | Vesuvio | 78 | 85 | 77 | +8 | 0.0 | - | |
| 7 | Flying Grace | 69 | 63 | 71 | -8 | 1.5 | - | |
| 8 | Mcebisi | 69 | 70 | 71 | -1 | 1.5 | - | |
| 9 | Splendid Season | 76 | 50 | 75 | -25 | 0.0 | - | |
| 10 | In Cahoots | 74 | 54 | 76 | -22 | 0.0 | - | |
| 11 | Letsdoit | 78 | 72 | 72 | ✓ Match | 3.0 | - | |
| 12 | Ice Eater | 62 | 57 | 67 | -10 | 0.0 | - | |
| 99 | Bright Blue Sky | - | 76 | 77 | -1 | 0.0 | - | |
| 99 | Golden Spoon | - | 76 | 78 | -2 | 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