Official NHA Assessment

Race 7: WALMER HANDICAP (For Fillies and Mares - Non-Black Type)

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Line Horse
Aerial View
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 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    Medlers Tart         2    57.5    1    0.00     0.0   90    90           90    +0
2    Definitely Maybe     3    54.5    2    2.75     1.5   81    83           83    +2
3    Aerial View          3    53.0    3    7.00     1.5   78    78           78    +0
4    Wildest Dreams       3    54.5    4    7.10     1.5   81    81           81    +0
5    Heartsease           3    53.5    5    9.35     1.5   78    79           79    +1
6    Hazy Crazy Night     2    55.5    6    9.40     0.0   86    86           86    +0
7    Double Destiny       2    55.5    7    9.50     0.0   86    86           86    +0
8    Unconditional Love   3    60.0    8    13.50    1.5   92    92           92    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Medlers Tart 90 92 90 +2 0.0 -
2 Definitely Maybe 81 97 83 +14 1.5 -
3 Aerial View Line 78 82 78 +4 1.5
4 Wildest Dreams 81 87 81 +6 1.5 -
5 Heartsease 78 73 79 -6 1.5 -
6 Hazy Crazy Night 86 79 86 -7 0.0 -
7 Double Destiny 86 77 86 -9 0.0 -
8 Unconditional Love 92 100 92 +8 1.5 -
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