Official NHA Assessment

Race 8: Lucky Fish Crazy Time CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Blue Poppy
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 8
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    Boom Boom            4    59.0    1    0.00     1.5   79    88           85    +6
2    Blue Poppy           3    59.5    2    0.10     3.0   86    86           86    +0
3    Prom Queen           3    60.0    3    0.15     3.0   81    87           87    +6
4    Opera Fan            2    56.0    4    2.05     0.0   82    88           88    +6
5    Your Ladyship        3    55.5    5    3.35     3.0   72    79           79    +7
5    West Side Story      3    54.5    5    3.35     3.0   73    77           77    +4
7    Pretty Kara          3    57.5    7    3.40     3.0   82    83           83    +1
8    Golden Croc          2    53.0    8    99.99    0.0   73    79           79    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Boom Boom 79 81 85 -4 1.5 -
2 Blue Poppy Line 86 84 86 -2 3.0
3 Prom Queen 81 81 87 -6 3.0 -
4 Opera Fan 82 81 88 -7 0.0 -
5 Your Ladyship 72 66 79 -13 3.0 -
5 West Side Story 73 70 77 -7 3.0 -
7 Pretty Kara 82 80 83 -3 3.0 -
8 Golden Croc 73 73 79 -6 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