Official NHA Assessment

Race 5: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 72 HANDICAP (Open)

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Line Horse
Fast Duty
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 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    Vava Vegas           5    52.5    1    0.00     0.0   57    64           57    +0
2    Circus Lights        5    57.0    2    0.25     0.0   66    73           73    +7
3    Munchkin             5    60.0    3    1.25     0.0   72    79           79    +7
4    Fast Duty            3    59.5    4    1.75     3.5   71    71           71    +0
5    Van Meijel           3    58.5    5    4.00     3.5   69    69           69    +0
6    John Wick            2    60.5    6    4.10     2.5   78    75           75    -3
7    Samthewiseman        5    54.5    7    4.40     0.0   61    68           68    +7
8    Kittyboys Girl       2    51.0    8    5.20     2.5   62    56           56    -6
9    Mix The Magic        3    50.0    9    5.40     3.5   60    52           52    -8
10   Mariachi Madness     2    59.0    10   10.40    2.5   75    72           72    -3
11   Pendragon            5    59.0    11   17.65    0.0   70    77           77    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vava Vegas 57 58 57 +1 0.0 -
2 Circus Lights 66 64 73 -9 0.0 -
3 Munchkin 72 65 79 -14 0.0 -
4 Fast Duty Line 71 67 71 -4 3.5
5 Van Meijel 69 54 69 -15 3.5 -
6 John Wick 78 82 75 +7 2.5 -
7 Samthewiseman 61 52 68 -16 0.0 -
8 Kittyboys Girl 62 59 56 +3 2.5 -
9 Mix The Magic 60 52 52 ✓ Match 3.5 -
10 Mariachi Madness 75 57 72 -15 2.5 -
11 Pendragon 70 73 77 -4 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