Official NHA Assessment

Race 6: 4RACING.TV MR 80 HANDICAP (Open)

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Line Horse
European Summer
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 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    Vegas Gold           3    59.5    1    0.00     4.5   79    79           79    +0
2    Tuscan Gold          2    60.0    2    1.50     3.0   80    83           83    +3
3    Vision Of Wonder     2    60.5    3    1.55     3.0   87    84           84    -3
4    European Summer      3    62.0    4    1.60     4.5   84    84           84    +0
5    Seattle Ripper       2    57.0    5    2.85     3.0   80    77           77    -3
6    Cool Winter          2    61.5    6    3.60     3.0   83    86           86    +3
7    Caitlyns Boy         2    60.0    7    5.10     3.0   80    83           83    +3
8    Putins Promise       5    57.0    8    7.85     0.0   74    83           83    +9
9    Rose For Trippi      2    60.0    9    8.35     3.0   85    83           83    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vegas Gold 79 83 79 +4 4.5 -
2 Tuscan Gold 80 84 83 +1 3.0 -
3 Vision Of Wonder 87 87 84 +3 3.0 -
4 European Summer Line 84 77 84 -7 4.5
5 Seattle Ripper 80 59 77 -18 3.0 -
6 Cool Winter 83 78 86 -8 3.0 -
7 Caitlyns Boy 80 71 83 -12 3.0 -
8 Putins Promise 74 73 83 -10 0.0 -
9 Rose For Trippi 85 80 83 -3 3.0 -
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