Official NHA Assessment
Race 1: HAPPY VALENTINE'S DAY MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)
Line Horse
Smashing
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 Belle Fontaine 3 60.0 1 0.00 4.5 52 71 58 +6 2 Sweet Julia 2 60.0 2 0.30 3.0 69 74 74 +5 3 Smashing 4 60.0 3 4.20 5.0 70 70 70 +0 4 Ladies Day 3 57.5 4 7.50 4.5 60 66 66 +6 5 Ribbons 'N Flags 3 58.5 5 11.40 4.5 60 68 68 +8 6 Tina's Kitten 2 60.0 6 15.50 3.0 51 74 74 +23 7 Roy's Lizzie 6 60.0 7 20.00 0.0 - 80 80 +80 8 Roys' Daisy 6 60.0 8 20.20 0.0 - 80 80 +80 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | Belle Fontaine | 52 | 65 | 58 | +7 | 4.5 | - | |
| 2 | Sweet Julia | 69 | 73 | 74 | -1 | 3.0 | - | |
| 3 | Smashing Line | 70 | 78 | 70 | +8 | 5.0 | ||
| 4 | Ladies Day | 60 | 56 | 66 | -10 | 4.5 | - | |
| 5 | Ribbons 'N Flags | 60 | 55 | 68 | -13 | 4.5 | - | |
| 6 | Tina's Kitten | 51 | 48 | 74 | -26 | 3.0 | - | |
| 7 | Roy's Lizzie | - | - | 80 | -80 | 0.0 | - | |
| 8 | Roys' Daisy | - | 39 | 80 | -41 | 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