Official NHA Assessment

Race 3: MERIT RATED 76 HANDICAP (Open)

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Line Horse
Gypsy Express
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
3 / 5
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    The Octagon          2    57.5    1    0.00     0.0   71    68           71    +0
2    Red Top              5    60.0    2    1.75     0.0   76    76           76    +0
3    Gypsy Express        5    56.0    3    2.25     0.0   68    68           68    +0
4    Battle Of Seattle    2    58.0    4    3.50     0.0   72    70           70    -2
5    Audacious            2    56.0    5    7.00     0.0   72    65           65    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Octagon 71 76 71 +5 0.0 -
2 Red Top 76 70 76 -6 0.0 -
3 Gypsy Express Line 68 58 68 -10 0.0
4 Battle Of Seattle 72 59 70 -11 0.0 -
5 Audacious 72 61 65 -4 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