Official NHA Assessment

Race 2: RACING240 MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Lauretta Mia
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
2 / 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    Skating On Ice       3    60.0    1    0.00     4.5   63    57           57    -6
2    Lauretta Mia         3    60.0    2    1.00     4.5   63    63           63    +0
3    Crafty Heart         4    60.0    3    1.75     2.0   52    67           67    +15
4    Libran Lana          3    60.0    4    3.50     4.5   62    60           60    -2
5    Eshraaq              3    60.0    5    3.75     4.5   62    59           59    -3
6    Empress Ki           4    57.5    6    7.50     2.0   43    57           57    +14
7    Colorama             6    60.0    7    7.55     0.0   57    66           66    +9
8    Star Search          3    58.5    8    13.05    4.5   42    54           54    +12
9    Winter Princess      3    60.0    9    15.05    4.5   20    57           57    +37
10   Apples And Things    3    60.0    10   16.30    4.5   50    57           57    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Skating On Ice 63 65 57 +8 4.5 -
2 Lauretta Mia Line 63 63 63 ✓ Match 4.5
3 Crafty Heart 52 63 67 -4 2.0 -
4 Libran Lana 62 51 60 -9 4.5 -
5 Eshraaq 62 59 59 ✓ Match 4.5 -
6 Empress Ki 43 27 57 -30 2.0 -
7 Colorama 57 54 66 -12 0.0 -
8 Star Search 42 40 54 -14 4.5 -
9 Winter Princess 20 20 57 -37 4.5 -
10 Apples And Things 50 45 57 -12 4.5 -
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