Official NHA Assessment

Race 1: ALOWELL MERIT RATED 65 HANDICAP (Open)

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Line Horse
Bello Grosso
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
3 / 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    Captive Moon         6    60.0    1    0.00     0.0   65    60           65    +0
2    Bello Grosso         2    59.0    2    0.50     0.0   63    63           63    +0
3    When Evening Comes   5    56.0    3    0.60     0.0   57    57           57    +0
4    Duchess Of War       2    58.5    4    2.35     0.0   62    59           59    -3
5    Follow The Band      2    56.0    5    3.10     0.0   60    54           54    -6
6    Bruce's Spirit       6    60.0    6    3.60     0.0   65    61           61    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captive Moon 65 75 65 +10 0.0 -
2 Bello Grosso Line 63 72 63 +9 0.0
3 When Evening Comes 57 58 57 +1 0.0 -
4 Duchess Of War 62 55 59 -4 0.0 -
5 Follow The Band 60 53 54 -1 0.0 -
6 Bruce's Spirit 65 55 61 -6 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