Official NHA Assessment

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

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Mrs Browning         5    57.0    1    0.00     0.0   -     -            -     +0
2    Inventrix            2    57.0    2    1.25     0.5   -     -            -     +0
3    Outlaw               2    57.0    3    1.85     0.5   -     -            -     +0
4    Simply Magic         3    60.0    4    2.25     1.5   65    -            62    -3
5    Kitty Corner         2    57.0    5    7.00     0.5   -     -            -     +0
6    Act Of Mercy         2    57.0    6    7.50     0.5   -     -            -     +0
7    Belle Ombre          3    60.0    7    10.00    1.5   57    -            51    -6
8    Mychancetodream      3    60.0    8    10.75    1.5   56    -            49    -7
9    Gaetana              3    60.0    9    14.50    1.5   35    -            27    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mrs Browning - 115 - +115 0.0 -
2 Inventrix - 73 - +73 0.5 -
3 Outlaw - 73 - +73 0.5 -
4 Simply Magic 65 67 62 +5 1.5 -
5 Kitty Corner - 60 - +60 0.5 -
6 Act Of Mercy - 58 - +58 0.5 -
7 Belle Ombre 57 50 51 -1 1.5 -
8 Mychancetodream 56 53 49 +4 1.5 -
9 Gaetana 35 26 27 -1 1.5 -
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