Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY RACING 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
5 / 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    Idita                4    57.0    1    0.00     5.0   -     -            -     +0
2    Summer Odyssey       2    60.0    2    1.00     3.0   -     -            -     +0
3    Jambo Sana           2    57.0    3    12.25    3.0   -     -            -     +0
4    Lontano              2    57.0    4    15.50    3.0   -     -            -     +0
5    Global Rush          2    57.0    5    15.60    3.0   -     -            -     +0
6    Silenzioso           2    57.0    6    16.85    3.0   -     -            -     +0
99   Fire Glow            4    57.0    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 Idita - 79 - +79 5.0 -
2 Summer Odyssey - 84 - +84 3.0 -
3 Jambo Sana - 74 - +74 3.0 -
4 Lontano - 47 - +47 3.0 -
5 Global Rush - 82 - +82 3.0 -
6 Silenzioso - - - - 3.0 -
99 Fire Glow - 67 - - 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