Official NHA Assessment

Race 3: MERIT RATED 63 HANDICAP (Open)

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Line Horse
Captive Moon
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
4 / 6
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    Bruce's Spirit       6    60.0    1    0.00     0.0   63    58           63    +0
2    Captive Moon         6    58.0    2    0.50     0.0   59    59           59    +0
3    Duchess Of War       2    60.0    3    2.50     0.0   63    60           60    -3
4    Days Gone By         3    54.5    4    10.50    5.0   52    37           42    -10
5    When Evening Comes   5    58.5    5    12.50    0.0   60    55           55    -5
99   Jackonory            3    56.5    99   0.00     5.0   -     41           41    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bruce's Spirit 63 55 63 -8 0.0 -
2 Captive Moon Line 59 75 59 +16 0.0
3 Duchess Of War 63 55 60 -5 0.0 -
4 Days Gone By 52 51 42 +9 5.0 -
5 When Evening Comes 60 58 55 +3 0.0 -
99 Jackonory - 56 41 +15 5.0 -
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