Official NHA Assessment

Race 7: DENNIS DRIER POINSETTIA STAKES (Grade 3) (For 3-year & older Fillies and Mares)

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Line Horse
Buttercup Baby
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
8 / 11
Within 2 points
Significant Diffs
2 / 11
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    Asiye Phambili       3    62.0    1    0.00     3.0   119   111          111   -8
2    Tulip Fields         2    54.0    2    3.70     2.0   99    97           97    -2
3    Buttercup Baby       3    55.5    3    4.00     3.0   98    98           98    +0
4    Symphony In White    2    58.5    4    4.50     2.0   107   106          106   -1
5    Serengetti Sun       2    53.5    5    4.80     2.0   100   96           96    -4
6    Mai Sensation        3    59.5    6    5.40     3.0   108   106          106   -2
7    Regeneration         3    57.0    7    5.65     3.0   105   101          101   -4
8    Babelicious          3    58.5    8    6.05     3.0   106   104          104   -2
9    Sweetie Darling      2    55.5    9    6.35     2.0   100   100          100   +0
10   Vision To Achieve    4    55.0    10   6.50     3.5   87    96           96    +9
11   Tara Star            4    55.5    11   8.10     3.5   96    97           97    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Asiye Phambili 119 120 111 +9 3.0 -
2 Tulip Fields 99 100 97 +3 2.0 -
3 Buttercup Baby Line 98 98 98 ✓ Match 3.0
4 Symphony In White 107 107 106 +1 2.0 -
5 Serengetti Sun 100 98 96 +2 2.0 -
6 Mai Sensation 108 107 106 +1 3.0 -
7 Regeneration 105 102 101 +1 3.0 -
8 Babelicious 106 106 104 +2 3.0 -
9 Sweetie Darling 100 100 100 ✓ Match 2.0 -
10 Vision To Achieve 87 87 96 -9 3.5 -
11 Tara Star 96 96 97 -1 3.5 -
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