Official NHA Assessment

Race 8: WSB CLUB PRIVE ACACIA STAKES (Grade 3) (For Fillies and Mares)

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Line Horse
Rouge Allure
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
8 / 13
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    Pin Up               5    54.0    1    0.00     0.0   89    84           84    -5
2    Rouge Allure         8    56.0    2    3.00     0.0   90    90           90    +0
3    Opera Glass          4    54.0    3    3.15     1.5   84    83           83    -1
4    Seehaam              5    58.0    4    4.25     0.0   99    93           93    -6
5    Sentbydestiny        4    60.0    5    5.00     1.5   102   93           93    -9
6    Admire Me            4    58.0    6    5.25     1.5   99    89           89    -10
7    Saragon              7    56.0    7    6.00     0.0   93    88           88    -5
8    Rosaprima            4    56.0    8    6.25     1.5   90    85           85    -5
9    Hollywoodbound       3    54.0    9    8.00     3.0   94    78           84    -10
10   Victoria Paige       5    60.0    10   8.50     0.0   101   96           96    -5
11   Pretty Betty         4    60.0    11   15.00    1.5   104   93           94    -10
99   Mount Laurel         5    60.0    99   0.00     0.0   -     96           96    +0
99   Bon Vivant           3    1.0     99   0.00     3.0   -     -28          -28   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pin Up 89 92 84 +8 0.0 -
2 Rouge Allure Line 90 103 90 +13 0.0
3 Opera Glass 84 81 83 -2 1.5 -
4 Seehaam 99 98 93 +5 0.0 -
5 Sentbydestiny 102 103 93 +10 1.5 -
6 Admire Me 99 85 89 -4 1.5 -
7 Saragon 93 86 88 -2 0.0 -
8 Rosaprima 90 75 85 -10 1.5 -
9 Hollywoodbound 94 101 84 +17 3.0 -
10 Victoria Paige 101 83 96 -13 0.0 -
11 Pretty Betty 104 94 94 ✓ Match 1.5 -
99 Mount Laurel - 107 96 +11 0.0 -
99 Bon Vivant - 96 -28 +124 3.0 -
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