Official NHA Assessment

Race 3: Catch KZN Racing via live streaming on www.galloptv.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Sonata Samaritan
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    Amafort              3    58.5    1    0.00     7.5   -     -3           -     +0
2    Sonata Samaritan     3    60.0    2    0.70     7.5   -     -            -     +0
3    Jeanne Darc          3    60.0    3    1.10     7.5   -     -            -     +0
4    Jumpthegreenlight    3    60.0    4    1.60     7.5   -     -            -     +0
5    Predator's Suprise   3    60.0    5    4.00     7.5   -     -            -     +0
6    K M V Retrofit       3    60.0    6    5.10     7.5   -     -            -     +0
7    Wings Of Josephine   3    56.0    7    7.70     7.5   -     -8           -     +0
8    Guard My Fate        3    60.0    8    8.50     7.5   60    -            53    -7
9    Skipper O'Malley     3    60.0    9    9.20     7.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Amafort - 61 - +61 7.5 -
2 Sonata Samaritan Line - 74 - +74 7.5
3 Jeanne Darc - 83 - +83 7.5 -
4 Jumpthegreenlight - 59 - +59 7.5 -
5 Predator's Suprise - 56 - +56 7.5 -
6 K M V Retrofit - 69 - +69 7.5 -
7 Wings Of Josephine - 78 - +78 7.5 -
8 Guard My Fate 60 48 53 -5 7.5 -
9 Skipper O'Malley - 62 - +62 7.5 -
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