Official NHA Assessment

Race 7: 4RACING SEA COTTAGE STAKES (Grade 3) (3 year olds. 3rd Leg HV Winter Series)

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Line Horse
Musical Score
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Choisaanada          2    57.0    1    0.00     0.0   106   113          112   +6
2    Fire Attack          3    60.0    2    0.20     1.5   126   116          116   -10
3    Musical Score        3    57.0    3    2.50     1.5   112   112          112   +0
4    Kamensky             3    57.0    4    2.60     1.5   104   112          112   +8
5    Pumpkin Pie          3    57.0    5    3.10     1.5   92    112          112   +20
6    Don't Cry For Me     3    57.0    6    5.60     1.5   99    110          110   +11
7    Zip Code             3    57.0    7    8.00     1.5   87    110          110   +23
8    Skittles Skies       3    57.0    8    10.25    1.5   82    110          110   +28
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Choisaanada 106 121 112 +9 0.0 -
2 Fire Attack 126 124 116 +8 1.5 -
3 Musical Score Line 112 107 112 -5 1.5
4 Kamensky 104 105 112 -7 1.5 -
5 Pumpkin Pie 92 92 112 -20 1.5 -
6 Don't Cry For Me 99 103 110 -7 1.5 -
7 Zip Code 87 77 110 -33 1.5 -
8 Skittles Skies 82 96 110 -14 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