Official NHA Assessment

Race 10: WILGERBOSDRIFT BRIDGET OPPENHEIMER SA OAKS (Grade 2) (For 3 year-old Fillies (3rd Leg of SA Triple Tiara))

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Line Horse
Daisy Jones
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 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    Littlemissmillion    2    60.0    1    0.00     0.0   107   108          108   +1
2    Hazy Dazy            2    60.0    2    2.00     0.0   117   112          112   -5
3    Daisy Jones          2    60.0    3    7.40     0.0   108   108          108   +0
4    Drumnadrochit        3    60.0    4    15.40    5.5   105   97           97    -8
5    Shadowline           3    60.0    5    17.90    5.5   78    97           97    +19
6    Charge It            2    60.0    6    18.90    0.0   113   108          108   -5
7    Stampede Ahead       2    60.0    7    99.99    0.0   76    108          108   +32
8    Clouds Clearing      2    60.0    8    99.99    0.0   74    108          108   +34
99   Amazon Queen         3    60.0    99   0.00     5.5   -     97           97    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Littlemissmillion 107 114 108 +6 0.0 -
2 Hazy Dazy 117 117 112 +5 0.0 -
3 Daisy Jones Line 108 108 108 ✓ Match 0.0
4 Drumnadrochit 105 105 97 +8 5.5 -
5 Shadowline 78 78 97 -19 5.5 -
6 Charge It 113 113 108 +5 0.0 -
7 Stampede Ahead 76 76 108 -32 0.0 -
8 Clouds Clearing 74 74 108 -34 0.0 -
99 Amazon Queen - 81 97 -16 5.5 -
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