Official NHA Assessment

Race 9: HKJC WORLD POOL POLITICIAN STAKES (Grade 3) (Open to all 3 year olds - Derby Trial)

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Line Horse
Happy Verse
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
4 / 8
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    Star Major           2    60.0    1    0.00     0.0   109   108          108   -1
2    Happy Verse          2    60.0    2    0.40     0.0   113   113          113   +0
3    Better Man           2    58.5    3    3.15     0.0   100   107          107   +7
4    Pay The Palace       2    60.0    4    4.15     0.0   105   109          109   +4
5    Fox On The Run       3    60.0    5    6.65     6.0   110   96           100   -10
6    Randolph Hearst      2    60.0    6    8.40     0.0   112   108          108   -4
7    Touched By Angels    3    57.0    7    8.80     6.0   97    90           90    -7
8    Count Of Rouen       2    58.5    8    12.80    0.0   100   105          105   +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Star Major 109 114 108 +6 0.0 -
2 Happy Verse Line 113 113 113 ✓ Match 0.0
3 Better Man 100 104 107 -3 0.0 -
4 Pay The Palace 105 104 109 -5 0.0 -
5 Fox On The Run 110 110 100 +10 6.0 -
6 Randolph Hearst 112 112 108 +4 0.0 -
7 Touched By Angels 97 97 90 +7 6.0 -
8 Count Of Rouen 100 96 105 -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