Official NHA Assessment

Race 5: TAB CAMELLIA STAKES (Grade 2) (For Fillies and Mares)

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Line Horse
One Fell Swoop
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
2 / 7
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    Mrs Browning         5    60.0    1    0.00     0.0   106   112          112   +6
2    Time Fo Orchids      5    60.0    2    1.15     0.0   106   112          112   +6
3    White Pearl          4    58.0    3    1.25     3.5   112   101          102   -10
4    One Fell Swoop       2    58.0    4    3.75     2.0   104   104          104   +0
5    Alula's Star         3    60.0    5    6.00     3.0   107   106          106   -1
6    Kiss Me Captain      2    60.0    6    8.00     2.0   112   108          108   -4
7    Mrs Geriatrix        2    60.0    7    9.75     2.0   115   108          108   -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mrs Browning 106 115 112 +3 0.0 -
2 Time Fo Orchids 106 109 112 -3 0.0 -
3 White Pearl 112 114 102 +12 3.5 -
4 One Fell Swoop Line 104 97 104 -7 2.0
5 Alula's Star 107 102 106 -4 3.0 -
6 Kiss Me Captain 112 112 108 +4 2.0 -
7 Mrs Geriatrix 115 112 108 +4 2.0 -
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