Official NHA Assessment

Race 2: MERIT RATED 69 HANDICAP (Open)

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Line Horse
Prince Of Denmark
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
2 / 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    Battle Of Seattle    2    60.0    1    0.00     0.0   69    70           69    +0
2    Prince Of Denmark    4    53.0    2    0.75     2.5   55    55           55    +0
3    Gypsy Express        5    58.0    3    1.50     0.0   65    69           69    +4
4    When Evening Comes   5    55.0    4    2.50     0.0   59    62           62    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Battle Of Seattle 69 59 69 -10 0.0 -
2 Prince Of Denmark Line 55 51 55 -4 2.5
3 Gypsy Express 65 58 69 -11 0.0 -
4 When Evening Comes 59 58 62 -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