Official NHA Assessment
Race 1: TABGOLD SCORE 10 SCORE 8 MAIDEN PLATE (For all Maidens)
Line Horse
Mo King
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Apex Predator 4 60.0 1 0.00 11.0 76 61 61 -15 2 Mo King 2 60.0 2 0.40 6.5 70 70 70 +0 3 Bandmaster 3 60.0 3 0.80 9.5 60 64 64 +4 4 Cappellino 3 58.5 4 2.60 9.5 66 61 61 -5 5 Bomber Stream 4 60.0 5 5.50 11.0 64 61 61 -3 6 The Teacher 2 58.0 6 12.50 6.5 - 66 66 +66 7 Bugsie 2 51.5 7 13.90 6.5 60 53 53 -7 8 Spring Willow 3 60.0 8 15.80 9.5 - 64 64 +64 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Apex Predator | 76 | 69 | 61 | +8 | 11.0 | - | |
| 2 | Mo King Line | 70 | 66 | 70 | -4 | 6.5 | ||
| 3 | Bandmaster | 60 | 62 | 64 | -2 | 9.5 | - | |
| 4 | Cappellino | 66 | 61 | 61 | ✓ Match | 9.5 | - | |
| 5 | Bomber Stream | 64 | 52 | 61 | -9 | 11.0 | - | |
| 6 | The Teacher | - | 42 | 66 | -24 | 6.5 | - | |
| 7 | Bugsie | 60 | 56 | 53 | +3 | 6.5 | - | |
| 8 | Spring Willow | - | - | 64 | -64 | 9.5 | - |
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