Official NHA Assessment
Race 2: RACING TODAY MR 66 HANDICAP (Open)
Line Horse
Full Go
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Vava Vegas 5 52.5 1 0.00 0.0 59 48 59 +0 2 Gimme The Flame 5 59.0 2 0.50 0.0 64 66 66 +2 3 Fifth Of July 5 58.5 3 1.25 0.0 66 64 64 -2 4 Full Go 6 55.0 4 1.75 0.0 56 56 56 +0 5 Carnelo 6 58.0 5 5.50 0.0 62 59 59 -3 6 Mariachi Madness 2 58.0 6 7.75 0.0 66 59 59 -7 99 Safe Space 5 57.5 99 0.00 0.0 - 58 58 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Vava Vegas | 59 | 58 | 59 | -1 | 0.0 | - | |
| 2 | Gimme The Flame | 64 | 50 | 66 | -16 | 0.0 | - | |
| 3 | Fifth Of July | 66 | 63 | 64 | -1 | 0.0 | - | |
| 4 | Full Go Line | 56 | 59 | 56 | +3 | 0.0 | ||
| 5 | Carnelo | 62 | 75 | 59 | +16 | 0.0 | - | |
| 6 | Mariachi Madness | 66 | 57 | 59 | -2 | 0.0 | - | |
| 99 | Safe Space | - | 83 | 58 | +25 | 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