Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA Bonus Series)

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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    Splicethemainbrace   3    60.0    1    0.00     5.0   -     -            -     +0
2    Happy Holly          2    57.5    2    0.10     3.5   -     -            -     +0
3    Serendipitous        3    60.0    3    3.85     5.0   -     -            -     +0
4    Magical River        2    60.0    4    5.85     3.5   -     -            -     +0
5    Chef D'Oeuvre        2    60.0    5    12.35    3.5   -     -            -     +0
6    Alpine Diamond       3    60.0    6    12.85    5.0   -     -            -     +0
99   Oh My Gucci Girl     3    60.0    99   0.00     5.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Splicethemainbrace - 108 - +108 5.0 -
2 Happy Holly - 89 - +89 3.5 -
3 Serendipitous - 60 - +60 5.0 -
4 Magical River - 74 - +74 3.5 -
5 Chef D'Oeuvre - 62 - +62 3.5 -
6 Alpine Diamond - 56 - +56 5.0 -
99 Oh My Gucci Girl - 62 - - 5.0 -
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