Official NHA Assessment

Race 2: 4RACING.TV MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Miss Soho
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 9
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Madame Vicki         2    58.0    1    0.00     6.5   74    75           75    +1
2    Smelting             7    60.0    2    0.50     0.0   49    92           92    +43
3    Rosy Lemon           5    58.0    3    0.75     0.0   -     88           88    +88
4    Miss Soho            2    58.0    4    1.20     6.5   75    75           75    +0
5    Tried And True       5    58.0    5    3.00     0.0   78    88           88    +10
6    Sky Velocity         5    58.0    6    4.00     0.0   -     88           88    +88
7    Gaetana              3    60.0    7    4.50     9.5   50    73           73    +23
8    Maggie Smith         2    58.0    8    8.00     6.5   -     75           75    +75
9    Sky Ruler            3    58.0    9    20.75    9.5   -     69           69    +69
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Madame Vicki 74 75 75 ✓ Match 6.5 -
2 Smelting 49 52 92 -40 0.0 -
3 Rosy Lemon - 72 88 -16 0.0 -
4 Miss Soho Line 75 73 75 -2 6.5
5 Tried And True 78 75 88 -13 0.0 -
6 Sky Velocity - 57 88 -31 0.0 -
7 Gaetana 50 26 73 -47 9.5 -
8 Maggie Smith - 72 75 -3 6.5 -
9 Sky Ruler - - 69 -69 9.5 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. 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