Official NHA Assessment

Race 4: www.caperacing.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
La Vida
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 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    La Vida              3    60.0    1    0.00     1.5   71    71           71    +0
2    Hunting Trip         2    57.0    2    2.25     0.5   -     67           67    +67
3    Gypsy Express        5    57.0    3    3.75     0.0   -     68           68    +68
4    Country Time         5    57.0    4    5.50     0.0   -     68           68    +68
5    Cityscape            2    57.0    5    6.75     0.5   -     67           67    +67
6    Hundredfifthavenue   2    57.0    6    7.15     0.5   -     67           67    +67
7    Midwinter Rose       2    57.0    7    7.65     0.5   -     67           67    +67
8    Amethystic           2    57.0    8    9.15     0.5   -     67           67    +67
9    If You Please        3    60.0    9    17.15    1.5   58    71           71    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 La Vida Line 71 64 71 -7 1.5
2 Hunting Trip - 96 67 +29 0.5 -
3 Gypsy Express - 58 68 -10 0.0 -
4 Country Time - 62 68 -6 0.0 -
5 Cityscape - 70 67 +3 0.5 -
6 Hundredfifthavenue - 57 67 -10 0.5 -
7 Midwinter Rose - - 67 -67 0.5 -
8 Amethystic - 50 67 -17 0.5 -
9 If You Please 58 56 71 -15 1.5 -
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