Official NHA Assessment

Race 5: MERIT RATED 90 HANDICAP (Open)

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Line Horse
Bugatti Blue
Reference for assessment
Exact Matches
1 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
1 / 4
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    Action Zone          3    57.5    1    0.00     3.0   85    75           85    +0
2    Tradition            4    57.0    2    0.25     1.5   84    77           77    -7
3    Bugatti Blue         7    60.0    3    0.75     0.0   90    90           90    +0
4    Raining Again        6    58.0    4    1.00     0.0   86    86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Action Zone 85 90 85 +5 3.0 -
2 Tradition 84 77 77 ✓ Match 1.5 -
3 Bugatti Blue Line 90 87 90 -3 0.0
4 Raining Again 86 73 86 -13 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