Official NHA Assessment

Race 6: WORLD SPORTS BETTING IRRIDESCENCE STAKES (Listed) (For 2 year old fillies)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Beach Bomb           2    59.0    1    0.00     0.0   -     -            -     +0
2    Royals               2    59.0    2    3.00     0.0   -     -            -     +0
3    Passchendaele        4    59.0    3    3.40     0.5   -     -            -     +0
4    October Morn         2    60.0    4    6.65     0.0   -     -            -     +0
5    Flying V             2    59.0    5    6.95     0.0   -     -            -     +0
6    Siddeley             2    59.0    6    11.45    0.0   -     -            -     +0
7    Green Valkyrie       4    59.0    7    13.20    0.5   -     -            -     +0
99   Quick Trip           2    59.0    99   0.00     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Beach Bomb - 117 - +117 0.0 -
2 Royals - 94 - +94 0.0 -
3 Passchendaele - 104 - +104 0.5 -
4 October Morn - 119 - +119 0.0 -
5 Flying V - 84 - +84 0.0 -
6 Siddeley - 105 - +105 0.0 -
7 Green Valkyrie - 74 - +74 0.5 -
99 Quick Trip - 82 - - 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