Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION PINNACLE STAKES (Open to all horses)

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Line Horse
Bush Tracker
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 8
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    Bush Tracker         6    62.0    1    0.00     0.0   108   108          108   +0
2    Cherry Ano           5    58.0    2    0.50     0.0   97    105          105   +8
3    Bold Resolve         4    59.5    3    1.00     7.0   96    93           93    -3
4    Quasimodo            2    58.0    4    1.75     0.0   94    103          103   +9
5    Tarantino            4    59.5    5    3.00     7.0   98    91           91    -7
6    Blonde Act           3    59.5    6    3.10     10.0  96    85           86    -10
7    Peace In Our World   6    58.0    7    5.10     0.0   92    100          100   +8
8    Zig Zag              5    56.5    8    6.35     0.0   88    97           97    +9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bush Tracker Line 108 100 108 -8 0.0
2 Cherry Ano 97 108 105 +3 0.0 -
3 Bold Resolve 96 91 93 -2 7.0 -
4 Quasimodo 94 89 103 -14 0.0 -
5 Tarantino 98 96 91 +5 7.0 -
6 Blonde Act 96 96 86 +10 10.0 -
7 Peace In Our World 92 89 100 -11 0.0 -
8 Zig Zag 88 87 97 -10 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