Official NHA Assessment

Race 1: PIERE STRYDOM 5600 WINNERS & COUNTING 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    Mighty Eagle         2    60.0    1    0.00     0.0   -     -            -     +0
2    Singleton Sam        2    60.0    2    1.75     0.0   -     -            -     +0
3    Redlightgreenlight   2    57.0    3    2.00     0.0   -     -            -     +0
4    Hubertus Hunt        2    54.0    4    7.50     0.0   -     -            -     +0
5    On An Impulse        2    57.0    5    10.50    0.0   -     -            -     +0
6    Red Penny            2    60.0    6    10.75    0.0   -     -            -     +0
99   The Last Duke        2    60.0    99   0.00     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mighty Eagle - 95 - +95 0.0 -
2 Singleton Sam - 98 - +98 0.0 -
3 Redlightgreenlight - 76 - +76 0.0 -
4 Hubertus Hunt - 75 - +75 0.0 -
5 On An Impulse - 79 - +79 0.0 -
6 Red Penny - 85 - +85 0.0 -
99 The Last Duke - 102 - - 0.0 -
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