Official NHA Assessment

Race 1: www.tabgold.co.za JUVENILE PLATE (Fillies) (For 2 year-old Fillies)

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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
6 / 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    Lady Heist           2    60.0    1    0.00     0.0   -     -            -     +0
2    Bright Star          2    57.0    2    1.20     0.0   -     -            -     +0
3    Alto Alex            2    60.0    3    1.60     0.0   -     -            -     +0
4    Ready To Fly         2    60.0    4    2.90     0.0   -     -            -     +0
5    Cataleya Summer      2    57.0    5    7.10     0.0   -     -            -     +0
6    Scarlet Woman        2    57.0    6    7.30     0.0   -     -            -     +0
99   My Cherie Amour      2    60.0    99   0.00     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Heist - 97 - +97 0.0 -
2 Bright Star - 69 - +69 0.0 -
3 Alto Alex - 79 - +79 0.0 -
4 Ready To Fly - 62 - +62 0.0 -
5 Cataleya Summer - 74 - +74 0.0 -
6 Scarlet Woman - 53 - +53 0.0 -
99 My Cherie Amour - 75 - - 0.0 -
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