Official NHA Assessment

Race 2: TAB MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 7
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    Silver Screen        2    57.0    1    0.00     0.5   -     -            -     +0
2    Gimme's Lassie       5    57.0    2    1.50     0.0   -     -            -     +0
3    Rafeef's Choice      5    57.0    3    3.00     0.0   -     -            -     +0
4    Ella's Delight       2    57.0    4    6.00     0.5   -     -            -     +0
5    Dracma               3    60.0    5    13.25    1.5   -     -            -     +0
99   Sophia Raie          2    57.0    99   0.00     0.5   -     -            -     +0
99   Medlers Tart         2    57.0    99   0.00     0.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silver Screen - 70 - +70 0.5 -
2 Gimme's Lassie - 101 - +101 0.0 -
3 Rafeef's Choice - 71 - +71 0.0 -
4 Ella's Delight - 71 - +71 0.5 -
5 Dracma - 43 - +43 1.5 -
99 Sophia Raie - - - - 0.5 -
99 Medlers Tart - 92 - - 0.5 -
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