Official NHA Assessment

Race 4: JOIN ZIMFUN MERIT RATED 88 HANDICAP (Open)

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Line Horse
Captive Moon
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
4 / 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    River Power          3    60.0    1    0.00     2.0   92    84           92    +0
2    Cosmic Event         5    55.0    2    0.50     0.0   78    83           83    +5
3    Captive Moon         6    59.0    3    5.50     0.0   86    86           86    +0
4    Bello Grosso         2    57.0    4    7.50     0.0   82    82           82    +0
5    Power Ranger         7    56.0    5    16.50    0.0   80    80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 River Power 92 97 92 +5 2.0 -
2 Cosmic Event 78 70 83 -13 0.0 -
3 Captive Moon Line 86 75 86 -11 0.0
4 Bello Grosso 82 72 82 -10 0.0 -
5 Power Ranger 80 69 80 -11 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