Official NHA Assessment

Race 2: #YOUCANBETONUS! OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares)

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Line Horse
Fantasy Girl
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 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    Just For U           2    58.5    1    0.00     0.0   66    61           61    -5
2    Fantasy Girl         2    55.0    2    0.50     0.0   59    59           59    +0
3    Welsh Starlet        3    53.0    3    2.75     1.0   58    50           50    -8
4    Beach Queen          3    60.0    4    3.00     1.0   69    64           64    -5
5    Amanatto             3    59.0    5    4.25     1.0   67    61           61    -6
6    Genteel              3    58.5    6    6.00     1.0   71    59           61    -10
7    Battle Of Britain    3    55.5    7    18.25    1.0   59    53           53    -6
99   Keenia's Princess    3    54.0    99   0.00     1.0   -     50           50    +0
99   Extraction           2    54.0    99   0.00     0.0   -     52           52    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Just For U 66 68 61 +7 0.0 -
2 Fantasy Girl Line 59 58 59 -1 0.0
3 Welsh Starlet 58 63 50 +13 1.0 -
4 Beach Queen 69 66 64 +2 1.0 -
5 Amanatto 67 64 61 +3 1.0 -
6 Genteel 71 68 61 +7 1.0 -
7 Battle Of Britain 59 59 53 +6 1.0 -
99 Keenia's Princess - 58 50 +8 1.0 -
99 Extraction - 54 52 +2 0.0 -
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