Official NHA Assessment

Race 1: MAIDEN PLATE (Maiden Plate Colts & Geldings to carry)

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Line Horse
Emma Of Normandy
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
2 / 4
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    The Work Of Life     3    60.0    1    0.00     2.5   62    35           35    -27
2    Emma Of Normandy     2    60.0    2    6.00     0.0   40    40           40    +0
3    Silent Power         3    60.0    3    18.00    2.5   -     35           35    +35
99   Jumped A Red         2    60.0    99   0.00     0.0   -     40           40    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Work Of Life 62 59 35 +24 2.5 -
2 Emma Of Normandy Line 40 44 40 +4 0.0
3 Silent Power - 42 35 +7 2.5 -
99 Jumped A Red - 42 40 +2 0.0 -
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