Official NHA Assessment

Race 1: 4RACING WISHES THE LADIES HAPPY WOMENS DAY MAIDEN PLATE (For all Maidens)

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Line Horse
Willow Charm
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 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    Clever Trevor        2    60.0    1    0.00     7.0   -     79           6     +6
2    Midnight Flyer       3    60.0    2    1.10     10.5  -     72           72    +72
3    Winston's Wonder     3    60.0    3    2.20     10.5  -     72           72    +72
4    Actuary              3    60.0    4    5.40     10.5  -     72           72    +72
5    Willow Charm         2    57.5    5    5.50     7.0   74    74           74    +0
6    Trip To Peace        2    60.0    6    7.25     7.0   -     79           79    +79
7    Rock My Boat         3    60.0    7    13.50    10.5  -     72           72    +72
8    Forever Canford      2    60.0    8    17.25    7.0   -     79           79    +79
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Clever Trevor - 89 6 +83 7.0 -
2 Midnight Flyer - 85 72 +13 10.5 -
3 Winston's Wonder - 87 72 +15 10.5 -
4 Actuary - 76 72 +4 10.5 -
5 Willow Charm Line 74 70 74 -4 7.0
6 Trip To Peace - 77 79 -2 7.0 -
7 Rock My Boat - 66 72 -6 10.5 -
8 Forever Canford - 67 79 -12 7.0 -
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