Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION MR 86 HANDICAP (Open)

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Line Horse
Forest Spy
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
3 / 10
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    Golden Link          3    58.5    1    0.00     8.5   94    77           94    +0
2    Anuschka's World     3    59.5    2    0.50     8.5   96    79           86    -10
3    Forest Spy           2    60.0    3    2.75     5.5   86    86           86    +0
4    Great Melody         3    57.0    4    5.00     8.5   80    74           74    -6
5    Whatever Next        6    57.5    5    5.25     0.0   81    92           92    +11
6    Cool Winter          2    58.5    6    8.50     5.5   83    83           83    +0
7    Idita                4    60.0    7    9.75     10.0  86    77           77    -9
8    Prophet              2    55.0    8    19.00    5.5   76    76           76    +0
9    Ubisika              2    59.5    9    25.25    5.5   85    85           85    +0
99   Son Of Zeus          3    58.0    99   0.00     8.5   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Golden Link 94 99 94 +5 8.5 -
2 Anuschka's World 96 114 86 +28 8.5 -
3 Forest Spy Line 86 85 86 -1 5.5
4 Great Melody 80 79 74 +5 8.5 -
5 Whatever Next 81 73 92 -19 0.0 -
6 Cool Winter 83 78 83 -5 5.5 -
7 Idita 86 79 77 +2 10.0 -
8 Prophet 76 66 76 -10 5.5 -
9 Ubisika 85 80 85 -5 5.5 -
99 Son Of Zeus - 81 76 +5 8.5 -
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