Official NHA Assessment

Race 4: BETWAY WE PAY YOUR TAX ON HORSE RACING WINS PINNACLE STAKES (For all horses)

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Line Horse
Castletown
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Bournemouth          5    56.5    1    0.00     0.0   85    111          91    +6
2    Castletown           3    61.0    2    7.25     10.0  100   100          100   +0
3    Great Affair         7    52.0    3    10.00    0.0   67    102          102   +35
4    Jaeger Moon          7    61.0    4    10.25    0.0   100   120          120   +20
5    Wildest Dreams       3    53.0    5    10.75    10.0  81    84           84    +3
6    Machete Man          2    59.5    6    12.00    0.0   95    117          117   +22
7    Jacob's Ladder       4    58.0    7    99.99    7.0   88    100          100   +12
8    Never Ending Rain    3    62.0    8    99.99    10.0  101   102          102   +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bournemouth 85 110 91 +19 0.0 -
2 Castletown Line 100 90 100 -10 10.0
3 Great Affair 67 63 102 -39 0.0 -
4 Jaeger Moon 100 97 120 -23 0.0 -
5 Wildest Dreams 81 87 84 +3 10.0 -
6 Machete Man 95 90 117 -27 0.0 -
7 Jacob's Ladder 88 73 100 -27 7.0 -
8 Never Ending Rain 101 101 102 -1 10.0 -
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