Official NHA Assessment

Race 1: WSB MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R60 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
10 / 11
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    Che Vincera          2    60.0    1    0.00     0.0   -     -            -     +0
2    Perilla              5    60.0    2    3.25     0.0   -     -            -     +0
3    Lucy The Pink        2    60.0    3    4.50     0.0   -     -            -     +0
4    Goddex Aphaea        2    60.0    4    5.25     0.0   -     -            -     +0
5    Echo Of Life         2    60.0    5    7.00     0.0   -     -            -     +0
6    Dream Spirit         2    60.0    6    8.50     0.0   -     -            -     +0
7    Open Secret          2    60.0    7    9.75     0.0   -     -            -     +0
8    Ravages Of War       2    60.0    8    12.00    0.0   -     -            -     +0
9    Fields Of Green      2    60.0    9    12.10    0.0   -     -            -     +0
10   Dream Spinner        2    60.0    10   19.60    0.0   -     -            -     +0
11   Youreyesonly         2    60.0    11   99.99    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 Che Vincera - 55 - +55 0.0 -
2 Perilla - 89 - +89 0.0 -
3 Lucy The Pink - 63 - +63 0.0 -
4 Goddex Aphaea - 58 - +58 0.0 -
5 Echo Of Life - 91 - +91 0.0 -
6 Dream Spirit - 55 - +55 0.0 -
7 Open Secret - 63 - +63 0.0 -
8 Ravages Of War - - - ✓ Match 0.0 -
9 Fields Of Green - 69 - +69 0.0 -
10 Dream Spinner - 49 - +49 0.0 -
11 Youreyesonly - 51 - +51 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