Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Taking A Risk
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 10
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    Inspiration          2    60.0    1    0.00     4.0   77    73           73    -4
2    Taking A Risk        2    60.0    2    3.50     4.0   73    73           73    +0
3    Fiery Frolic         2    60.0    3    3.60     4.0   66    73           73    +7
4    Princess Of All      3    57.5    4    4.30     6.0   75    64           65    -10
5    Amaze Me             2    60.0    5    10.80    4.0   69    73           73    +4
6    Smart Star           2    60.0    6    17.00    4.0   57    73           73    +16
7    Katya Kabanova       3    58.5    7    19.25    6.0   -     66           66    +66
8    Ruby From Heaven     3    60.0    8    20.50    6.0   -     69           69    +69
99   Girl In Verdite      2    60.0    99   0.00     4.0   -     73           73    +0
99   Mystical Butterfly   3    60.0    99   0.00     6.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Inspiration 77 79 73 +6 4.0 -
2 Taking A Risk Line 73 70 73 -3 4.0
3 Fiery Frolic 66 75 73 +2 4.0 -
4 Princess Of All 75 73 65 +8 6.0 -
5 Amaze Me 69 64 73 -9 4.0 -
6 Smart Star 57 52 73 -21 4.0 -
7 Katya Kabanova - 26 66 -40 6.0 -
8 Ruby From Heaven - 59 69 -10 6.0 -
99 Girl In Verdite - - 73 -73 4.0 -
99 Mystical Butterfly - 72 69 +3 6.0 -
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