Official NHA Assessment

Race 5: WORLD SPORTS BETTING SWEET CHESTNUT STAKES (Listed) (For F&M 3-years & older (Leg 1 of the Winter Series))

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Line Horse
Kwinta's Light
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
4 / 10
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    Happy Chance         2    56.0    1    0.00     0.0   106   102          102   -4
2    Kwinta's Light       3    56.5    2    0.30     1.5   105   105          105   +0
3    Echo Of Life         2    55.0    3    3.55     0.0   101   101          101   +0
4    Young Love           3    55.5    4    6.05     1.5   97    98           98    +1
5    Broadway Girl        5    55.0    5    6.55     0.0   103   100          100   -3
6    Marina               4    60.0    6    6.85     0.5   117   109          109   -8
7    Gimme's Lassie       5    56.0    7    8.10     0.0   107   102          102   -5
8    Ciao Bella           2    59.0    8    9.60     0.0   110   108          108   -2
9    Senhora Victoria     3    55.0    9    10.00    1.5   74    97           97    +23
99   Gold Poker Game      2    55.5    99   0.00     0.0   -     101          101   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Happy Chance 106 118 102 +16 0.0 -
2 Kwinta's Light Line 105 109 105 +4 1.5
3 Echo Of Life 101 91 101 -10 0.0 -
4 Young Love 97 95 98 -3 1.5 -
5 Broadway Girl 103 89 100 -11 0.0 -
6 Marina 117 112 109 +3 0.5 -
7 Gimme's Lassie 107 101 102 -1 0.0 -
8 Ciao Bella 110 110 108 +2 0.0 -
9 Senhora Victoria 74 66 97 -31 1.5 -
99 Gold Poker Game - 105 101 +4 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