Official NHA Assessment

Race 1: CAPE RACING MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Apple Catcher
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Hierkommiebokkie     5    60.0    1    0.00     0.0   -     10           6     +6
2    Apple Catcher        3    60.0    2    2.25     5.0   -     -            -     +0
3    California Dreamin   3    60.0    3    2.30     5.0   -     -            -     +0
4    Amethystic           2    60.0    4    5.55     3.5   68    3            58    -10
5    Jazz Diva            3    60.0    5    6.30     5.0   74    -            70    -4
6    Hundredfifthavenue   2    60.0    6    7.55     3.5   71    3            61    -10
7    Head Girl            5    60.0    7    8.55     0.0   78    10           68    -10
8    Black Hole Sun       4    58.5    8    10.30    6.0   -     -5           -     +0
99   My Flower Fate       3    60.0    99   0.00     5.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hierkommiebokkie - 90 6 +84 0.0 -
2 Apple Catcher Line - 50 - +50 5.0
3 California Dreamin - - - ✓ Match 5.0 -
4 Amethystic 68 50 58 -8 3.5 -
5 Jazz Diva 74 70 70 ✓ Match 5.0 -
6 Hundredfifthavenue 71 57 61 -4 3.5 -
7 Head Girl 78 62 68 -6 0.0 -
8 Black Hole Sun - 53 - +53 6.0 -
99 My Flower Fate - 86 - - 5.0 -
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