Official NHA Assessment

Race 6: GENERAL ACCESS R100 FROM TICKETPRO PINNACLE STAKES (Open)

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Line Horse
Feather Boa
Reference for assessment
Exact Matches
3 / 11
Calculated = Official
Close Matches
5 / 11
Within 2 points
Significant Diffs
5 / 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    Savannah Storm       5    52.0    1    0.00     0.0   101   102          102   +1
2    Feather Boa          2    58.0    2    0.25     0.0   114   114          114   +0
3    Val d'Orcia          3    48.0    3    1.75     6.0   101   85           91    -10
4    Humdinger            3    60.0    4    1.85     6.0   119   109          109   -10
5    Good Council         2    52.5    5    2.95     0.0   105   105          105   +0
6    Winter Greeting      5    52.0    6    3.00     0.0   105   104          104   -1
7    Captain Peg          5    54.0    7    3.40     0.0   109   107          107   -2
8    Peach Daiquiri       2    56.0    8    3.60     0.0   110   111          111   +1
9    Cabinet Shuffle      4    54.5    9    5.75     3.5   104   100          100   -4
10   River Romeo          2    52.0    10   7.25     0.0   101   102          102   +1
99   Stratospheric        2    52.0    99   0.00     0.0   -     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 Savannah Storm 101 102 102 ✓ Match 0.0 -
2 Feather Boa Line 114 114 114 ✓ Match 0.0
3 Val d'Orcia 101 105 91 +14 6.0 -
4 Humdinger 119 119 109 +10 6.0 -
5 Good Council 105 104 105 -1 0.0 -
6 Winter Greeting 105 104 104 ✓ Match 0.0 -
7 Captain Peg 109 100 107 -7 0.0 -
8 Peach Daiquiri 110 110 111 -1 0.0 -
9 Cabinet Shuffle 104 76 100 -24 3.5 -
10 River Romeo 101 94 102 -8 0.0 -
99 Stratospheric - 97 102 -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