Official NHA Assessment

Race 1: www.tabgold.co.za MAIDEN JUVENILE PLATE (For Maiden 2 year-olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 8
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    Big Slick            2    60.0    1    0.00     2.5   -     -            -     +0
2    Potente              2    60.0    2    0.30     2.5   -     -            -     +0
3    Action Stations      2    60.0    3    0.35     2.5   -     -            -     +0
4    Silver Ducat         2    56.0    4    0.55     2.5   -     -            -     +0
5    Captain Catman       2    60.0    5    1.35     2.5   -     -            -     +0
6    Querulous            2    57.5    6    1.95     2.5   -     -            -     +0
7    Hayat                2    60.0    7    4.55     2.5   -     -            -     +0
99   Du Cane              2    60.0    99   0.00     2.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Big Slick - 64 - +64 2.5 -
2 Potente - 60 - +60 2.5 -
3 Action Stations - 71 - +71 2.5 -
4 Silver Ducat - 78 - +78 2.5 -
5 Captain Catman - 79 - +79 2.5 -
6 Querulous - 73 - +73 2.5 -
7 Hayat - 72 - +72 2.5 -
99 Du Cane - 45 - - 2.5 -
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