Official NHA Assessment

Race 5: MERIT RATED 84 HANDICAP (Open)

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Line Horse
Zazu
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
1 / 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    Tigers Eagle         3    53.5    1    0.00     8.0   71    49           71    +0
2    Action Zone          3    60.0    2    0.50     8.0   85    69           75    -10
3    Zazu                 6    55.0    3    1.25     0.0   74    74           74    +0
4    Qunetra              4    56.5    4    1.75     4.5   77    67           67    -10
5    Coffeeberry          5    56.5    5    3.50     0.0   78    74           74    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tigers Eagle 71 79 71 +8 8.0 -
2 Action Zone 85 90 75 +15 8.0 -
3 Zazu Line 74 71 74 -3 0.0
4 Qunetra 77 83 67 +16 4.5 -
5 Coffeeberry 78 72 74 -2 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