Official NHA Assessment

Race 6: WORLD SPORTS BETTING SLEDGEHAMMER (Listed) (Open)

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Line Horse
Shoot The Rapids
Reference for assessment
Exact Matches
2 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
3 / 7
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    Field Marshal        3    59.5    1    0.00     3.5   107   100          100   -7
2    Shoot The Rapids     4    64.5    2    1.60     1.5   117   117          117   +0
3    Bruh                 2    52.0    3    3.30     0.0   92    93           93    +1
4    Birthright           4    54.0    4    3.45     1.5   95    94           94    -1
5    I Salute You         3    62.0    5    3.75     3.5   112   106          106   -6
6    Down By The River    2    53.5    6    4.35     0.0   95    95           95    +0
99   Jp's Palace          3    52.5    99   0.00     3.5   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Field Marshal 107 110 100 +10 3.5 -
2 Shoot The Rapids Line 117 117 117 ✓ Match 1.5
3 Bruh 92 96 93 +3 0.0 -
4 Birthright 95 95 94 +1 1.5 -
5 I Salute You 112 112 106 +6 3.5 -
6 Down By The River 95 95 95 ✓ Match 0.0 -
99 Jp's Palace - 93 86 +7 3.5 -
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