Official NHA Assessment
Race 3: PLAY SOCCER 6, 10 AND 13 OPEN MAIDEN (For all Maidens)
Line Horse
Sempre Bella
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
4 / 7
Within 2 points
Significant Diffs
2 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Cheap Thrills 4 54.5 1 0.00 7.0 51 55 55 +4 2 Outback Express 2 55.0 2 0.05 0.0 68 70 70 +2 3 Sempre Bella 3 56.0 3 2.05 10.0 57 57 57 +0 4 Prolific Star 3 60.0 4 2.55 10.0 67 64 64 -3 5 Welsh Starlet 3 54.5 5 2.65 10.0 57 53 53 -4 6 Zambezi Sunset 2 54.5 6 3.65 0.0 56 72 72 +16 7 Go Dancing 3 52.0 7 3.90 10.0 53 46 46 -7 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Cheap Thrills | 51 | 56 | 55 | +1 | 7.0 | - | |
| 2 | Outback Express | 68 | 71 | 70 | +1 | 0.0 | - | |
| 3 | Sempre Bella Line | 57 | 56 | 57 | -1 | 10.0 | ||
| 4 | Prolific Star | 67 | 64 | 64 | ✓ Match | 10.0 | - | |
| 5 | Welsh Starlet | 57 | 63 | 53 | +10 | 10.0 | - | |
| 6 | Zambezi Sunset | 56 | 60 | 72 | -12 | 0.0 | - | |
| 7 | Go Dancing | 53 | 50 | 46 | +4 | 10.0 | - |
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