Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY RACING MAIDEN JUVENILE PLATE (For 2 yo R60 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 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    Ledell's Echo        2    60.0    1    0.00     1.0   -     -            -     +0
2    Dammi                2    60.0    2    1.25     1.0   -     -            -     +0
3    Le Bonheur           2    60.0    3    2.50     1.0   -     -            -     +0
4    Flying Asterix       2    60.0    4    10.00    1.0   -     -            -     +0
5    New Perspective      2    58.5    5    26.50    1.0   -     -            -     +0
99   Onnetilia            2    56.0    99   0.00     1.0   -     -            -     +0
99   Seismic Event        2    60.0    99   0.00     1.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ledell's Echo - 88 - +88 1.0 -
2 Dammi - 55 - +55 1.0 -
3 Le Bonheur - 60 - +60 1.0 -
4 Flying Asterix - 61 - +61 1.0 -
5 New Perspective - - - ✓ Match 1.0 -
99 Onnetilia - 64 - - 1.0 -
99 Seismic Event - 70 - - 1.0 -
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