Official NHA Assessment

Race 5: WALMER HANDICAP (For Fillies and Mares - Non-Black Type)

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Line Horse
Enchanting Choice
Reference for assessment
Exact Matches
3 / 9
Calculated = Official
Close Matches
5 / 9
Within 2 points
Significant Diffs
0 / 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    Enchanting Choice    4    61.0    1    0.00     1.0   99    99           99    +0
2    Family Power         4    58.0    2    1.75     1.0   93    96           96    +3
3    Ginger Delight       3    54.0    3    2.25     2.5   85    85           85    +0
4    Strawberry Thief     3    56.0    4    2.75     2.5   89    88           88    -1
5    Epikleros            2    59.5    5    3.50     0.0   96    99           99    +3
6    Key Worker           3    53.5    6    4.00     2.5   84    82           82    -2
7    Accept Cookies       3    58.5    7    7.50     2.5   94    91           91    -3
99   Three Cheers         3    52.0    99   0.00     2.5   -     78           78    +0
99   Walkonthewildside    3    53.5    99   0.00     2.5   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Enchanting Choice Line 99 99 99 ✓ Match 1.0
2 Family Power 93 93 96 -3 1.0 -
3 Ginger Delight 85 85 85 ✓ Match 2.5 -
4 Strawberry Thief 89 89 88 +1 2.5 -
5 Epikleros 96 96 99 -3 0.0 -
6 Key Worker 84 84 82 +2 2.5 -
7 Accept Cookies 94 94 91 +3 2.5 -
99 Three Cheers - 78 78 ✓ Match 2.5 -
99 Walkonthewildside - 84 81 +3 2.5 -
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