Official NHA Assessment

Race 4: ABSTO MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Flying Hafla
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 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    Pull A Fast One      2    57.0    1    0.00     0.0   70    77           76    +6
2    Flying Hafla         2    57.0    2    0.20     0.0   77    77           77    +0
3    Hurricane Flight     3    58.5    3    1.10     8.0   64    70           70    +6
4    Sanbeenee            2    57.0    4    2.00     0.0   50    82           82    +32
5    Baltic Assayer       2    57.0    5    2.60     0.0   64    81           81    +17
6    Call Me Harriet      2    57.0    6    4.60     0.0   72    78           78    +6
7    Queen Of The Air     3    57.0    7    5.20     8.0   -     61           61    +61
99   Mocha Blend          3    57.0    99   0.00     8.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pull A Fast One 70 75 76 -1 0.0 -
2 Flying Hafla Line 77 73 77 -4 0.0
3 Hurricane Flight 64 55 70 -15 8.0 -
4 Sanbeenee 50 59 82 -23 0.0 -
5 Baltic Assayer 64 53 81 -28 0.0 -
6 Call Me Harriet 72 63 78 -15 0.0 -
7 Queen Of The Air - 61 61 ✓ Match 8.0 -
99 Mocha Blend - 117 61 +56 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