Official NHA Assessment

Race 6: CELEBRATING CENTURION MEMBER LAURENCE WERNARS' BIRTHDAY CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Kwite A King
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 7
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    Congressman          4    57.5    1    0.00     2.0   75    72           72    -3
2    Kwite A King         4    58.5    2    2.25     2.0   77    77           77    +0
3    Regulation           3    59.5    3    2.35     4.5   88    73           78    -10
4    Dubbelosix           3    56.5    4    2.65     4.5   82    67           72    -10
5    Red Dawn             3    58.5    5    8.15     4.5   86    69           76    -10
6    Diamond Rock         4    62.0    6    10.65    2.0   84    81           81    -3
7    Chollima             6    62.5    7    11.05    0.0   85    86           86    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Congressman 75 93 72 +21 2.0 -
2 Kwite A King Line 77 79 77 +2 2.0
3 Regulation 88 105 78 +27 4.5 -
4 Dubbelosix 82 84 72 +12 4.5 -
5 Red Dawn 86 79 76 +3 4.5 -
6 Diamond Rock 84 78 81 -3 2.0 -
7 Chollima 85 85 86 -1 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