Official NHA Assessment

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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    Ibhele               3    60.0    1    0.00     7.5   -     -            -     +0
2    Fine One             2    60.0    2    0.75     5.0   -     -            -     +0
3    World Pharoah        3    60.0    3    5.25     7.5   -     -            -     +0
4    Act Of Genius        2    60.0    4    7.55     5.0   -     -            -     +0
5    Ant Dynasty          2    60.0    5    9.75     5.0   -     -            -     +0
6    Hot Lava             3    57.5    6    9.85     7.5   -     -            -     +0
7    Bumble Bee Gold      2    60.0    7    10.25    5.0   -     -            -     +0
8    Son Of Erupt         2    60.0    8    15.45    5.0   -     -            -     +0
99   Quelimane            2    60.0    99   0.00     5.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ibhele - 70 - +70 7.5 -
2 Fine One - 84 - +84 5.0 -
3 World Pharoah - 69 - +69 7.5 -
4 Act Of Genius - 65 - +65 5.0 -
5 Ant Dynasty - 71 - +71 5.0 -
6 Hot Lava - 69 - +69 7.5 -
7 Bumble Bee Gold - 56 - +56 5.0 -
8 Son Of Erupt - 74 - +74 5.0 -
99 Quelimane - 73 - - 5.0 -
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