Official NHA Assessment

Race 6: CHRISTMAS HANDICAP (Listed) (Open)

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Line Horse
Imilenzeyokududuma
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Formagear            5    58.5    1    0.00     0.0   100   96           100   +0
2    Imilenzeyokududuma   6    59.0    2    0.80     0.0   101   101          101   +0
3    Cape Eagle           7    60.0    3    1.00     0.0   103   103          103   +0
4    Down To Business     2    58.5    4    3.10     0.0   100   98           98    -2
5    Queue Wing           7    56.5    5    3.70     0.0   96    93           93    -3
6    Bella Siccome        3    53.5    6    5.80     5.0   89    76           79    -10
7    Mexican Pete         3    53.5    7    7.80     5.0   100   76           90    -10
8    Addabar              3    57.5    8    10.80    5.0   98    84           88    -10
99   Beechamwood Boy      6    57.5    99   0.00     0.0   -     94           94    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Formagear 100 108 100 +8 0.0 -
2 Imilenzeyokududuma Line 101 109 101 +8 0.0
3 Cape Eagle 103 106 103 +3 0.0 -
4 Down To Business 100 100 98 +2 0.0 -
5 Queue Wing 96 81 93 -12 0.0 -
6 Bella Siccome 89 93 79 +14 5.0 -
7 Mexican Pete 100 84 90 -6 5.0 -
8 Addabar 98 97 88 +9 5.0 -
99 Beechamwood Boy - 84 94 -10 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