Official NHA Assessment

Race 7: WWW.HIGHVELDRACING.CO.ZA FM 86 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Humdinger
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 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    Wokonda              3    56.0    1    0.00     2.0   82    79           82    +0
2    Humdinger            3    57.0    2    1.70     2.0   84    84           84    +0
3    Mamaquera            5    53.5    3    1.75     0.0   73    81           81    +8
4    Roha                 4    59.0    4    4.00     0.5   84    89           89    +5
5    Lee Express          4    58.0    5    5.30     0.5   82    86           86    +4
6    Rosaprima            4    60.0    6    5.35     0.5   86    90           90    +4
7    Coral Dawn           3    52.0    7    6.55     2.0   74    71           71    -3
8    Freedom Of Choice    3    50.0    8    10.85    2.0   78    67           68    -10
9    Bureau des Legende   3    61.0    9    11.25    2.0   92    89           89    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Wokonda 82 89 82 +7 2.0 -
2 Humdinger Line 84 119 84 +35 2.0
3 Mamaquera 73 60 81 -21 0.0 -
4 Roha 84 89 89 ✓ Match 0.5 -
5 Lee Express 82 79 86 -7 0.5 -
6 Rosaprima 86 75 90 -15 0.5 -
7 Coral Dawn 74 67 71 -4 2.0 -
8 Freedom Of Choice 78 64 68 -4 2.0 -
9 Bureau des Legende 92 97 89 +8 2.0 -
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