Official NHA Assessment

Race 7: ACACIA STAKES (Grade 3) (For Fillies and Mares)

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Line Horse
Terra Time
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
4 / 14
Within 2 points
Significant Diffs
7 / 14
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    Clafoutis            3    52.0    1    0.00     4.0   94    90           90    -4
2    Queen Of Shadows     3    52.0    2    0.50     4.0   91    95           95    +4
3    Hollywoodbound       3    56.0    3    1.00     4.0   100   102          102   +2
4    Terra Time           3    56.0    4    1.50     4.0   101   101          101   +0
5    Emerald Princess     3    54.0    5    2.50     4.0   98    96           96    -2
6    Gilded Butterfly     3    58.0    6    2.60     4.0   106   104          104   -2
7    Supreme Quest        3    56.0    7    5.00     4.0   100   98           98    -2
8    Pink Tourmaline      4    58.0    8    5.10     2.0   108   106          106   -2
9    Bold Fortune         4    54.0    9    5.25     2.0   98    98           98    +0
10   Rain In Holland      3    60.0    10   6.75     4.0   114   106          106   -8
11   Evening Primrose     3    52.0    11   8.25     4.0   92    90           90    -2
12   Bureau des Legende   3    52.0    12   11.75    4.0   94    90           90    -4
13   Ululate              4    52.5    13   14.00    2.0   91    95           95    +4
99   Miss Cool            2    54.0    99   0.00     0.0   -     102          102   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Clafoutis 94 96 90 +6 4.0 -
2 Queen Of Shadows 91 95 95 ✓ Match 4.0 -
3 Hollywoodbound 100 101 102 -1 4.0 -
4 Terra Time Line 101 96 101 -5 4.0
5 Emerald Princess 98 98 96 +2 4.0 -
6 Gilded Butterfly 106 108 104 +4 4.0 -
7 Supreme Quest 100 92 98 -6 4.0 -
8 Pink Tourmaline 108 108 106 +2 2.0 -
9 Bold Fortune 98 83 98 -15 2.0 -
10 Rain In Holland 114 120 106 +14 4.0 -
11 Evening Primrose 92 77 90 -13 4.0 -
12 Bureau des Legende 94 97 90 +7 4.0 -
13 Ululate 91 80 95 -15 2.0 -
99 Miss Cool - 106 102 +4 0.0 -
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