Official NHA Assessment

Race 10: HALFWAY TO HEAVEN PINNACLE STAKES (Open)

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Line Horse
Goodtime Guy
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 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    Invidia              5    54.0    1    0.00     0.0   104   104          104   +0
1    Chimichuri Run       6    58.0    1    0.00     0.0   114   112          112   -2
3    Vars Vicky           4    56.0    3    1.00     2.0   110   108          108   -2
4    Goodtime Guy         4    50.0    4    1.25     2.0   96    96           96    +0
5    Mk's Pride           4    62.0    5    3.75     2.0   123   117          117   -6
6    Forever Mine         4    54.5    6    5.75     2.0   104   101          101   -3
7    Bingwa               7    60.0    7    6.00     0.0   118   116          116   -2
8    Mardi Gras           7    54.0    8    10.00    0.0   106   104          104   -2
9    Ikigai               8    56.0    9    13.00    0.0   110   108          108   -2
10   Captain Hindsight    5    50.0    10   17.00    0.0   95    96           96    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Invidia 104 105 104 +1 0.0 -
1 Chimichuri Run 114 115 112 +3 0.0 -
3 Vars Vicky 110 116 108 +8 2.0 -
4 Goodtime Guy Line 96 96 96 ✓ Match 2.0
5 Mk's Pride 123 116 117 -1 2.0 -
6 Forever Mine 104 105 101 +4 2.0 -
7 Bingwa 118 107 116 -9 0.0 -
8 Mardi Gras 106 83 104 -21 0.0 -
9 Ikigai 110 91 108 -17 0.0 -
10 Captain Hindsight 95 112 96 +16 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