Official NHA Assessment

Race 1: WSB Welcomes you MAIDEN PLATE (For all Maidens)

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Line Horse
Are You Sure
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Position Of Power    3    60.0    1    0.00     2.5   -     77           6     +6
2    Pinetti              2    57.0    2    0.30     1.5   -     73           73    +73
3    Are You Sure         2    57.5    3    2.70     1.5   74    74           74    +0
4    Champagne Problems   2    57.5    4    3.10     1.5   70    74           74    +4
5    Boardwalk Breeze     2    57.0    5    4.20     1.5   -     73           73    +73
6    Capricious Miss      3    57.5    6    4.40     2.5   -     72           72    +72
7    Clickbait            3    57.5    7    6.20     2.5   -     72           72    +72
99   Life On The Tides    3    60.0    99   0.00     2.5   -     77           77    +0
99   Simbine              2    57.0    99   0.00     1.5   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Position Of Power - 90 6 +84 2.5 -
2 Pinetti - 84 73 +11 1.5 -
3 Are You Sure Line 74 64 74 -10 1.5
4 Champagne Problems 70 68 74 -6 1.5 -
5 Boardwalk Breeze - 80 73 +7 1.5 -
6 Capricious Miss - 60 72 -12 2.5 -
7 Clickbait - 73 72 +1 2.5 -
99 Life On The Tides - 62 77 -15 2.5 -
99 Simbine - 78 73 +5 1.5 -
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