Official NHA Assessment

Race 4: BLOODSTOCK SA SALES CUP (Fillies) (For 3yo Fillies (Non-Blk Type))

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Line Horse
Simple Simple
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
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    Feather Boa          2    60.0    1    0.00     0.0   99    93           93    -6
2    Miss Daisy           2    60.0    2    1.30     0.0   105   96           96    -9
3    Mrs Browning         5    60.0    3    5.30     0.0   83    93           93    +10
4    Simple Simple        5    60.0    4    7.50     0.0   93    93           93    +0
5    Kill Shot            2    60.0    5    8.50     0.0   97    93           93    -4
6    Lady Regent          2    60.0    6    8.70     0.0   87    93           93    +6
7    A Colourful Past     2    60.0    7    10.50    0.0   77    93           93    +16
8    Follow The Flow      3    60.0    8    23.00    8.0   -     77           77    +77
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Feather Boa 99 114 93 +21 0.0 -
2 Miss Daisy 105 108 96 +12 0.0 -
3 Mrs Browning 83 115 93 +22 0.0 -
4 Simple Simple Line 93 71 93 -22 0.0
5 Kill Shot 97 54 93 -39 0.0 -
6 Lady Regent 87 84 93 -9 0.0 -
7 A Colourful Past 77 66 93 -27 0.0 -
8 Follow The Flow - 61 77 -16 8.0 -
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