Official NHA Assessment

Race 3: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
St Patrick's Day
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Eclair               2    56.5    1    0.00     0.0   -     43           6     +6
2    Flowers Of Nike      2    56.0    2    0.50     0.0   -     47           47    +47
3    St Patrick's Day     4    60.0    3    3.00     0.5   51    51           51    +0
4    Libran Lana          3    60.0    4    5.00     0.5   60    49           50    -10
5    Herewegojo           4    60.0    5    7.00     0.5   -     49           49    +49
6    Claregari            2    52.0    6    7.25     0.0   -     34           34    +34
7    Red Sphere           2    56.0    7    9.50     0.0   -     42           42    +42
8    Aunt Liberty         2    56.0    8    60.75    0.0   -     42           42    +42
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Eclair - 54 6 +48 0.0 -
2 Flowers Of Nike - 69 47 +22 0.0 -
3 St Patrick's Day Line 51 42 51 -9 0.5
4 Libran Lana 60 51 50 +1 0.5 -
5 Herewegojo - 35 49 -14 0.5 -
6 Claregari - 42 34 +8 0.0 -
7 Red Sphere - 58 42 +16 0.0 -
8 Aunt Liberty - 38 42 -4 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