Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (3-year-old Fillies) (For Maiden 3 year-old Fillies)

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Line Horse
Dondoyaki
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 7
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    On The Run           2    60.0    1    0.00     7.0   -     80           6     +6
2    Master's Lady        2    60.0    2    2.75     7.0   -     80           80    +80
3    Dondoyaki            2    60.0    3    3.45     7.0   80    80           80    +0
4    Amaze Me             2    56.0    4    5.20     7.0   76    72           72    -4
5    Korcula              2    60.0    5    10.00    7.0   -     80           80    +80
6    Midnight Miracle     2    60.0    6    11.00    7.0   80    80           80    +0
99   Sassy Lassie         2    58.5    99   0.00     7.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 On The Run - 83 6 +77 7.0 -
2 Master's Lady - 70 80 -10 7.0 -
3 Dondoyaki Line 80 74 80 -6 7.0
4 Amaze Me 76 64 72 -8 7.0 -
5 Korcula - 77 80 -3 7.0 -
6 Midnight Miracle 80 75 80 -5 7.0 -
99 Sassy Lassie - 59 77 -18 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