Official NHA Assessment

Race 5: Kuda Comprehensive Cover MR 68 HANDICAP (Open)

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Line Horse
Porfirio
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
4 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Forest Jump          8    60.0    1    0.00     0.0   68    68           68    +0
2    Track Commander      4    53.0    2    1.60     0.5   54    56           56    +2
3    Porfirio             6    58.0    3    2.00     0.0   67    67           67    +0
4    Happy Aristocrat     4    61.0    4    2.15     0.5   70    72           72    +2
5    Cozy Dot Com         5    48.0    5    2.90     0.0   50    46           46    -4
6    Double Gemini        7    55.5    6    3.50     0.0   67    60           60    -7
7    Double Espresso      5    58.0    7    4.00     0.0   64    65           65    +1
8    Amberglo Star        5    52.5    8    4.25     0.0   53    54           54    +1
9    Ancient State        5    52.0    9    4.95     0.0   50    52           52    +2
10   Ciro                 4    54.0    10   5.25     0.5   56    55           55    -1
11   Lucretius            6    60.0    11   6.55     0.0   74    68           68    -6
12   What A Blast         6    52.5    12   7.95     0.0   53    53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Forest Jump 68 62 68 -6 0.0 -
2 Track Commander 54 66 56 +10 0.5 -
3 Porfirio Line 67 88 67 +21 0.0
4 Happy Aristocrat 70 62 72 -10 0.5 -
5 Cozy Dot Com 50 47 46 +1 0.0 -
6 Double Gemini 67 61 60 +1 0.0 -
7 Double Espresso 64 60 65 -5 0.0 -
8 Amberglo Star 53 50 54 -4 0.0 -
9 Ancient State 50 50 52 -2 0.0 -
10 Ciro 56 50 55 -5 0.5 -
11 Lucretius 74 64 68 -4 0.0 -
12 What A Blast 53 53 53 ✓ Match 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