Official NHA Assessment

Race 5: MERIT RATED 90 HANDICAP (Open)

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Line Horse
Power Ranger
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
1 / 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    Jaeger Moon          7    60.5    1    0.00     0.0   91    88           91    +0
2    Tigers Eagle         3    54.0    2    1.75     2.5   78    73           73    -5
3    Power Ranger         7    55.0    3    2.25     0.0   80    80           80    +0
4    Bugatti Blue         7    59.5    4    3.00     0.0   89    88           88    -1
5    Raining Again        6    57.0    5    4.25     0.0   84    82           82    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jaeger Moon 91 97 91 +6 0.0 -
2 Tigers Eagle 78 79 73 +6 2.5 -
3 Power Ranger Line 80 69 80 -11 0.0
4 Bugatti Blue 89 87 88 -1 0.0 -
5 Raining Again 84 73 82 -9 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