Official NHA Assessment

Race 7: #ThisIsRacing FM 73 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
L'Ami Jean
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
2 / 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    Little Doe           4    55.0    1    0.00     1.5   63    63           63    +0
2    L'Ami Jean           4    56.0    2    0.05     1.5   65    65           65    +0
3    Academic Gold        5    58.0    3    0.45     0.0   69    77           77    +8
4    Magical Java         6    54.5    4    2.45     0.0   62    67           67    +5
5    Cracklin' Rose       3    57.5    5    2.65     2.5   74    68           68    -6
6    Belle Rouge          3    60.0    6    3.90     2.5   79    72           72    -7
7    Super Siri           3    57.0    7    4.10     2.5   73    66           66    -7
8    Fly To Rio           4    54.5    8    4.15     1.5   62    63           63    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Little Doe 63 65 63 +2 1.5 -
2 L'Ami Jean Line 65 64 65 -1 1.5
3 Academic Gold 69 80 77 +3 0.0 -
4 Magical Java 62 62 67 -5 0.0 -
5 Cracklin' Rose 74 67 68 -1 2.5 -
6 Belle Rouge 79 58 72 -14 2.5 -
7 Super Siri 73 63 66 -3 2.5 -
8 Fly To Rio 62 54 63 -9 1.5 -
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