Official NHA Assessment

Race 4: SCORE10 FM 65 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Winter Journey
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Royal Kitty          5    55.5    1    0.00     0.0   56    72           56    +0
2    Birdwatcher          5    56.5    2    1.50     0.0   58    77           77    +19
3    Winter Journey       3    58.5    3    4.00     8.0   63    63           63    +0
4    Enid's Girl          2    57.0    4    5.50     0.0   75    75           75    +0
5    Aisling              3    57.5    5    5.90     8.0   69    60           60    -9
6    Flower Season        5    56.0    6    7.80     0.0   57    73           73    +16
7    Alto Alex            2    59.0    7    99.99    0.0   79    79           79    +0
99   Vision Of Will       3    57.5    99   0.00     8.0   -     60           60    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Kitty 56 66 56 +10 0.0 -
2 Birdwatcher 58 53 77 -24 0.0 -
3 Winter Journey Line 63 50 63 -13 8.0
4 Enid's Girl 75 59 75 -16 0.0 -
5 Aisling 69 66 60 +6 8.0 -
6 Flower Season 57 54 73 -19 0.0 -
7 Alto Alex 79 79 79 ✓ Match 0.0 -
99 Vision Of Will - 66 60 +6 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