Official NHA Assessment

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Line Horse
Brosnan
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 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    Brosnan              2    60.0    1    0.00     1.0   68    68           68    +0
2    King Rahul           4    57.0    2    0.60     2.5   -     59           59    +59
3    Neerah               2    54.5    3    0.80     1.0   -     57           57    +57
4    Joker Man            4    57.0    4    2.00     2.5   -     59           59    +59
5    Viva Spirit          2    57.0    5    2.75     1.0   -     62           62    +62
6    Someday Maybe        3    57.5    6    3.75     2.0   62    61           61    -1
99   Statesman            2    57.0    99   0.00     1.0   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Brosnan Line 68 75 68 +7 1.0
2 King Rahul - 63 59 +4 2.5 -
3 Neerah - 77 57 +20 1.0 -
4 Joker Man - 98 59 +39 2.5 -
5 Viva Spirit - 72 62 +10 1.0 -
6 Someday Maybe 62 56 61 -5 2.0 -
99 Statesman - 63 62 +1 1.0 -
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