Official NHA Assessment

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
0 / 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    Erik Dubois          2    57.0    1    0.00     2.5   -     -            -     +0
2    Lady Godiva          2    56.0    2    0.40     2.5   -     -            -     +0
3    Lady Jean            2    57.5    3    2.90     2.5   -     -            -     +0
4    Free Roaming         2    57.0    4    7.70     2.5   -     -            -     +0
5    Spirit Of Gabz       2    60.0    5    18.80    2.5   -     -            -     +0
6    In The Red           2    57.0    6    28.30    2.5   -     -            -     +0
99   Rocco's Peace        2    57.0    99   0.00     2.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Erik Dubois - - - - 2.5 -
2 Lady Godiva - - - - 2.5 -
3 Lady Jean - - - - 2.5 -
4 Free Roaming - - - - 2.5 -
5 Spirit Of Gabz - - - - 2.5 -
6 In The Red - - - - 2.5 -
99 Rocco's Peace - - - - 2.5 -
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