Official NHA Assessment

Race 2: PIERE STRYDOM MEMBER OF 300 WINS IN-A-SEASON CLUB MAIDEN JUVENILE PLATE (Fillies) (For 2 year old Fillies)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 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    Stormy Day (ARG)     2    60.0    1    0.00     0.5   -     -            -     +0
2    Sistership           2    60.0    2    4.25     0.5   -     -            -     +0
3    Vamanos              2    60.0    3    5.85     0.5   -     -            -     +0
4    Gaslight Dancer      2    60.0    4    7.15     0.5   -     -            -     +0
5    Fire In Her Soul     2    58.5    5    10.15    0.5   -     -            -     +0
6    Hidden Treasure      2    60.0    6    33.25    0.5   -     -            -     +0
99   Korcula              2    60.0    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 Stormy Day (ARG) - 92 - +92 0.5 -
2 Sistership - - - ✓ Match 0.5 -
3 Vamanos - 87 - +87 0.5 -
4 Gaslight Dancer - 85 - +85 0.5 -
5 Fire In Her Soul - 88 - +88 0.5 -
6 Hidden Treasure - 10 - +10 0.5 -
99 Korcula - 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