Official NHA Assessment

Race 5: #YOUCANBETONUS! PINNACLE STAKES (Open to all horses)

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Line Horse
Karate Kid
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
7 / 12
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    Truth                2    58.0    1    0.00     5.5   116   123          122   +6
2    Karate Kid           3    52.0    2    0.70     8.5   105   105          105   +0
3    Sheldon              6    54.0    3    1.00     0.0   106   126          126   +20
4    Taxi To The Moon     3    56.0    4    1.50     8.5   110   113          113   +3
5    Dreamland            4    50.0    5    2.00     10.0  107   98           98    -9
6    Dyce                 6    62.0    6    2.10     0.0   128   142          142   +14
7    Anfields Rocket      5    54.0    7    2.60     0.0   109   126          126   +17
8    Chyavana             3    54.5    8    4.40     8.5   107   110          110   +3
9    Mover And Shaker     5    54.5    9    6.40     0.0   111   127          127   +16
10   Mount Pilatus        4    52.0    10   6.80     10.0  113   102          103   -10
99   Mount Pinatubo       2    56.0    99   0.00     5.5   -     119          119   +0
99   Chrome Tourmaline    4    52.0    99   0.00     10.0  -     102          102   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Truth 116 120 122 -2 5.5 -
2 Karate Kid Line 105 103 105 -2 8.5
3 Sheldon 106 106 126 -20 0.0 -
4 Taxi To The Moon 110 119 113 +6 8.5 -
5 Dreamland 107 103 98 +5 10.0 -
6 Dyce 128 128 142 -14 0.0 -
7 Anfields Rocket 109 106 126 -20 0.0 -
8 Chyavana 107 106 110 -4 8.5 -
9 Mover And Shaker 111 109 127 -18 0.0 -
10 Mount Pilatus 113 113 103 +10 10.0 -
99 Mount Pinatubo - 109 119 -10 5.5 -
99 Chrome Tourmaline - 107 102 +5 10.0 -
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