Official NHA Assessment

Race 5: WILGERBOSDRIFT HAWAII STAKES (Grade 2) (Open)

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Line Horse
Bingwa
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 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    Al Muthana (AUS)     4    59.0    1    0.00     1.5   115   111          111   -4
2    Freed From Desire    3    53.5    2    0.30     2.5   110   103          103   -7
3    Mk's Pride           4    60.0    3    2.50     1.5   123   115          115   -8
4    Bingwa               7    60.0    4    3.00     0.0   118   118          118   +0
5    Puerto Manzano (ARG  4    59.0    5    5.25     1.5   111   111          111   +0
6    Vars Vicky           4    60.0    6    8.25     1.5   109   113          113   +4
7    Chimichuri Run       6    59.0    7    9.50     0.0   115   114          114   -1
8    Cirillo              6    59.0    8    12.50    0.0   116   114          114   -2
9    Invidia              5    59.0    9    17.50    0.0   107   114          114   +7
10   Savannah Storm       5    59.0    10   18.50    0.0   97    114          114   +17
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Al Muthana (AUS) 115 114 111 +3 1.5 -
2 Freed From Desire 110 116 103 +13 2.5 -
3 Mk's Pride 123 116 115 +1 1.5 -
4 Bingwa Line 118 107 118 -11 0.0
5 Puerto Manzano (ARG) 111 119 111 +8 1.5 -
6 Vars Vicky 109 116 113 +3 1.5 -
7 Chimichuri Run 115 115 114 +1 0.0 -
8 Cirillo 116 98 114 -16 0.0 -
9 Invidia 107 105 114 -9 0.0 -
10 Savannah Storm 97 102 114 -12 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