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
1 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
5 / 6
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    Luna Halo            4    60.0    1    0.00     6.0   -     -            -     +0
2    Paris Lass           4    60.0    2    5.25     6.0   -     -            -     +0
3    Amazing Colours      4    60.0    3    8.50     6.0   -     -            -     +0
4    Public Benefit       2    60.0    4    17.00    3.5   -     -            -     +0
5    Ojas                 2    60.0    5    21.50    3.5   -     -            -     +0
6    Camara Green         2    60.0    6    37.25    3.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Luna Halo - 106 - +106 6.0 -
2 Paris Lass - 102 - +102 6.0 -
3 Amazing Colours - 59 - +59 6.0 -
4 Public Benefit - 86 - +86 3.5 -
5 Ojas - - - ✓ Match 3.5 -
6 Camara Green - 40 - +40 3.5 -
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