Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN JUVENILE PLATE (For 2 year olds)

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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    Symbol Of Love       2    57.5    1    0.00     0.5   -     -            -     +0
2    Bella Attrice        2    58.5    2    1.25     0.5   -     -            -     +0
3    Shervil Glow         2    60.0    3    4.25     0.5   -     -            -     +0
4    Josi Mo              2    57.5    4    4.30     0.5   -     -            -     +0
5    Valyrian Sword       2    60.0    5    4.80     0.5   -     -            -     +0
6    Lady D'arbanville    2    57.5    6    5.30     0.5   -     -            -     +0
99   Magmalicious         2    57.5    99   0.00     0.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Symbol Of Love - 94 - +94 0.5 -
2 Bella Attrice - 66 - +66 0.5 -
3 Shervil Glow - 71 - +71 0.5 -
4 Josi Mo - 56 - +56 0.5 -
5 Valyrian Sword - 50 - +50 0.5 -
6 Lady D'arbanville - 70 - +70 0.5 -
99 Magmalicious - 61 - - 0.5 -
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