Official NHA Assessment

Race 6: WSB Club Prive FEVER TREE STAKES (For all horses - Non-Black Type)

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Line Horse
Socrates
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
7 / 11
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    Shampompo Shampizi   7    52.5    1    0.00     0.0   83    94           89    +6
2    Socrates             7    58.5    2    0.25     0.0   106   106          106   +0
3    Full Blast           4    54.0    3    1.55     2.0   87    96           96    +9
4    Al's My Daddy        5    50.0    4    2.35     0.0   77    91           91    +14
5    Capoeira             6    58.5    5    3.75     0.0   106   107          107   +1
6    Chattertons Keeper   5    57.0    6    4.25     0.0   101   104          104   +3
7    Tread Swiftly        4    55.5    7    4.95     2.0   94    96           96    +2
8    Solid Gold           6    60.0    8    6.75     0.0   111   109          109   -2
9    Sniper Shot          7    55.5    9    7.00     0.0   93    100          100   +7
10   Keep It Secret       3    52.5    10   7.05     4.0   91    86           86    -5
11   Pearl Of Asia        5    61.5    11   8.35     0.0   121   112          112   -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shampompo Shampizi 83 93 89 +4 0.0 -
2 Socrates Line 106 111 106 +5 0.0
3 Full Blast 87 86 96 -10 2.0 -
4 Al's My Daddy 77 70 91 -21 0.0 -
5 Capoeira 106 102 107 -5 0.0 -
6 Chattertons Keeper 101 98 104 -6 0.0 -
7 Tread Swiftly 94 90 96 -6 2.0 -
8 Solid Gold 111 103 109 -6 0.0 -
9 Sniper Shot 93 91 100 -9 0.0 -
10 Keep It Secret 91 80 86 -6 4.0 -
11 Pearl Of Asia 121 107 112 -5 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