Official NHA Assessment
Race 3: LUCKY FISH BOOK OF POSEIDON MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)
Line Horse
Nannie Gold
Reference for assessment
Exact Matches
0 / 16
Calculated = Official
Close Matches
3 / 16
Within 2 points
Significant Diffs
12 / 16
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------ Pos Horse Age Weight Fin Lengths WFA Pre Race Rating New Adj ------------------------------------------------------------------------------------------------------------------------ 1 One Dance 3 60.0 1 0.00 7.5 69 82 75 +6 2 Seven No Trump 2 59.0 2 4.25 5.0 73 85 85 +12 3 Nannie Gold 3 59.0 3 4.65 7.5 80 80 80 +0 4 Epernay 4 56.0 4 5.65 9.0 - 71 71 +71 5 Vivo Per Lei 3 60.0 5 7.90 7.5 65 82 82 +17 6 Starting Point 3 59.0 6 8.65 7.5 - 80 80 +80 7 Matrjoshka 3 59.0 7 8.95 7.5 - 80 80 +80 8 Theleia 3 59.0 8 10.70 7.5 - 80 80 +80 9 Miss Smiley 3 59.0 9 11.00 7.5 74 80 80 +6 10 Divine State 3 59.0 10 11.20 7.5 - 80 80 +80 11 Who Is She 3 59.0 11 14.70 7.5 - 80 80 +80 12 Three Tulips 3 59.0 12 15.70 7.5 - 80 80 +80 13 Hop Hop Spinnekop 3 59.0 13 16.45 7.5 - 80 80 +80 14 Lady Banks 3 59.0 14 18.20 7.5 - 80 80 +80 99 Giddy Up Grace 2 59.0 99 0.00 5.0 - 85 85 +0 99 Xtines Princess (GB 3 59.0 99 0.00 7.5 - 80 80 +0 ------------------------------------------------------------------------------------------------------------------------
Horse-by-Horse Comparison
| Pos | Horse | Pre-Rating | Official New | Calculated | Discrepancy | WFA (kg) | Line Horse | Calculation |
|---|---|---|---|---|---|---|---|---|
| 1 | One Dance | 69 | 82 | 75 | +7 | 7.5 | - | |
| 2 | Seven No Trump | 73 | 83 | 85 | -2 | 5.0 | - | |
| 3 | Nannie Gold Line | 80 | 78 | 80 | -2 | 7.5 | ||
| 4 | Epernay | - | 64 | 71 | -7 | 9.0 | - | |
| 5 | Vivo Per Lei | 65 | 66 | 82 | -16 | 7.5 | - | |
| 6 | Starting Point | - | 78 | 80 | -2 | 7.5 | - | |
| 7 | Matrjoshka | - | - | 80 | -80 | 7.5 | - | |
| 8 | Theleia | - | 76 | 80 | -4 | 7.5 | - | |
| 9 | Miss Smiley | 74 | 65 | 80 | -15 | 7.5 | - | |
| 10 | Divine State | - | 62 | 80 | -18 | 7.5 | - | |
| 11 | Who Is She | - | 74 | 80 | -6 | 7.5 | - | |
| 12 | Three Tulips | - | 58 | 80 | -22 | 7.5 | - | |
| 13 | Hop Hop Spinnekop | - | 69 | 80 | -11 | 7.5 | - | |
| 14 | Lady Banks | - | 67 | 80 | -13 | 7.5 | - | |
| 99 | Giddy Up Grace | - | 63 | 85 | -22 | 5.0 | - | |
| 99 | Xtines Princess (GB) | - | 71 | 80 | -9 | 7.5 | - |
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