Official NHA Assessment

Race 2: RACING TODAY MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA / RCS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
0 / 9
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    Secretary Bird       2    60.0    1    0.00     3.5   -     -            -     +0
2    Staggerwing          2    60.0    2    2.00     3.5   -     -            -     +0
3    Platinum Shay        2    60.0    3    6.75     3.5   -     -            -     +0
4    No Drama             2    60.0    4    7.65     3.5   -     -            -     +0
5    Irish Wilma          2    60.0    5    8.65     3.5   -     -            -     +0
6    Versatility          2    60.0    6    9.75     3.5   -     -            -     +0
7    Lady Enid            2    57.5    7    10.00    3.5   -     -            -     +0
8    Tax Free             2    60.0    8    11.50    3.5   -     -            -     +0
9    Regal Queen          2    60.0    9    14.00    3.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Secretary Bird - - - - 3.5 -
2 Staggerwing - - - - 3.5 -
3 Platinum Shay - - - - 3.5 -
4 No Drama - - - - 3.5 -
5 Irish Wilma - - - - 3.5 -
6 Versatility - - - - 3.5 -
7 Lady Enid - - - - 3.5 -
8 Tax Free - - - - 3.5 -
9 Regal Queen - - - - 3.5 -
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