Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win CRS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
6 / 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    Larius Lacus         2    60.0    1    0.00     0.5   -     -            -     +0
2    Casino King          2    60.0    2    3.75     0.5   -     -            -     +0
3    Zambezi Sunset       2    60.0    3    10.25    0.5   -     -            -     +0
4    Red Orchid Rising    2    60.0    4    12.50    0.5   -     -            -     +0
5    Waltzing Doll        2    57.5    5    13.75    0.5   -     -            -     +0
6    Olive Oyl            2    57.5    6    99.98    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 Larius Lacus - 75 - +75 0.5 -
2 Casino King - 72 - +72 0.5 -
3 Zambezi Sunset - 60 - +60 0.5 -
4 Red Orchid Rising - 60 - +60 0.5 -
5 Waltzing Doll - 60 - +60 0.5 -
6 Olive Oyl - 77 - +77 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