Official NHA Assessment
Race 3: RIETHUISKRAAL STUD CLASS 5 (Open. Benchmark at 60.0kg = 66)
Line Horse
Mela Strength
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 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 Azzurri 4 61.5 1 0.00 3.0 69 75 75 +6 2 Mela Strength 3 59.0 2 0.20 6.0 64 64 64 +0 3 Beer With The Boys 3 59.5 3 0.50 6.0 65 70 70 +5 4 Ozark 4 61.5 4 3.25 3.0 69 77 77 +8 5 State Capitol 4 59.0 5 3.45 3.0 64 71 71 +7 6 Avignon 4 58.0 6 3.85 3.0 62 69 69 +7 7 Hang Out The Stars 5 58.0 7 8.85 0.0 62 74 74 +12 8 Etoilefillante 4 59.0 8 14.60 3.0 64 70 70 +6 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Azzurri | 69 | 77 | 75 | +2 | 3.0 | - | |
| 2 | Mela Strength Line | 64 | 63 | 64 | -1 | 6.0 | ||
| 3 | Beer With The Boys | 65 | 59 | 70 | -11 | 6.0 | - | |
| 4 | Ozark | 69 | 61 | 77 | -16 | 3.0 | - | |
| 5 | State Capitol | 64 | 55 | 71 | -16 | 3.0 | - | |
| 6 | Avignon | 62 | 61 | 69 | -8 | 3.0 | - | |
| 7 | Hang Out The Stars | 62 | 58 | 74 | -16 | 0.0 | - | |
| 8 | Etoilefillante | 64 | 51 | 70 | -19 | 3.0 | - |
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