Official NHA Assessment

Race 6: DEREK MICHAEL NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
Top Division
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
6 / 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    It's Personal        3    57.5    1    0.00     10.5  77    84           77    +0
2    The Last Duke        2    58.0    2    0.20     7.0   92    92           92    +0
3    Clairwood Rose       2    55.0    3    0.90     7.0   86    86           86    +0
4    Top Division         2    58.0    4    1.20     7.0   92    92           92    +0
5    Futurenaire          3    58.0    5    6.30     10.5  78    85           85    +7
6    Bright And Brazen    2    56.5    6    10.70    7.0   89    89           89    +0
99   Bourbon Reserve      2    60.0    99   0.00     7.0   -     96           96    +0
99   Blushing Bloom       2    53.5    99   0.00     7.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 It's Personal 77 85 77 +8 10.5 -
2 The Last Duke 92 102 92 +10 7.0 -
3 Clairwood Rose 86 77 86 -9 7.0 -
4 Top Division Line 92 90 92 -2 7.0
5 Futurenaire 78 72 85 -13 10.5 -
6 Bright And Brazen 89 97 89 +8 7.0 -
99 Bourbon Reserve - 82 96 -14 7.0 -
99 Blushing Bloom - 83 83 ✓ Match 7.0 -
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