Official NHA Assessment
Race 7: LONDON NEWS STAKES (Grade 3) (Open)
Line Horse
Electric Gold
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
6 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Puerto Manzano (ARG 4 60.0 1 0.00 3.0 123 111 111 -12 2 Electric Gold 5 51.0 2 0.40 0.0 104 104 104 +0 3 Total Protection 2 51.5 3 2.25 0.0 96 103 103 +7 4 Red Saxon 3 59.5 4 2.30 6.0 116 106 106 -10 5 Marigold Hotel 3 54.0 5 5.25 6.0 105 93 95 -10 6 Second Base 4 59.0 6 10.00 3.0 112 109 109 -3 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Puerto Manzano (ARG) | 123 | 119 | 111 | +8 | 3.0 | - | |
| 2 | Electric Gold Line | 104 | 96 | 104 | -8 | 0.0 | ||
| 3 | Total Protection | 96 | 96 | 103 | -7 | 0.0 | - | |
| 4 | Red Saxon | 116 | 116 | 106 | +10 | 6.0 | - | |
| 5 | Marigold Hotel | 105 | 107 | 95 | +12 | 6.0 | - | |
| 6 | Second Base | 112 | 99 | 109 | -10 | 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