Official NHA Assessment

Race 3: SCHWEPPES POLITICIAN STAKES (Grade 3) (Open to all 3 year olds - Derby Trial)

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Line Horse
Green With Envy
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
9 / 13
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    Green With Envy      2    60.0    1    0.00     0.0   110   110          110   +0
2    The Grey King        4    54.0    2    1.25     3.0   87    96           96    +9
3    Harajuku             2    57.0    3    1.65     0.0   96    107          107   +11
4    Fatal Gem            4    53.0    4    3.15     3.0   94    92           92    -2
5    Get Impressed        2    55.5    5    3.45     0.0   90    102          102   +12
6    Blue Bay             3    54.0    6    3.75     6.0   84    87           87    +3
7    Hat's Pride          2    60.0    7    5.00     0.0   106   110          110   +4
8    Oriental Charm       3    54.0    8    5.30     6.0   87    86           86    -1
9    Holding Thumbs       4    54.0    9    5.50     3.0   85    92           92    +7
10   Call To Unite        2    55.5    10   9.75     0.0   90    101          101   +11
11   King Pelles          3    55.5    11   9.80     6.0   93    89           89    -4
12   Except Temptation    2    54.5    12   17.30    0.0   89    99           99    +10
13   Just Var             4    54.5    13   20.55    3.0   85    93           93    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Green With Envy Line 110 127 110 +17 0.0
2 The Grey King 87 98 96 +2 3.0 -
3 Harajuku 96 101 107 -6 0.0 -
4 Fatal Gem 94 91 92 -1 3.0 -
5 Get Impressed 90 103 102 +1 0.0 -
6 Blue Bay 84 84 87 -3 6.0 -
7 Hat's Pride 106 97 110 -13 0.0 -
8 Oriental Charm 87 127 86 +41 6.0 -
9 Holding Thumbs 85 119 92 +27 3.0 -
10 Call To Unite 90 94 101 -7 0.0 -
11 King Pelles 93 122 89 +33 6.0 -
12 Except Temptation 89 84 99 -15 0.0 -
13 Just Var 85 83 93 -10 3.0 -
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