Official NHA Assessment

Race 3: SF PINE SHAVINGS QUALIFIED MAIDEN PLATE (F & M) (Maiden F&M with 3 runs or more & gross rating of 68 or less)

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Line Horse
Winter Melody
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 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    Winter Melody        3    60.0    1    0.00     1.0   65    65           65    +0
2    Forged In Ice        3    60.0    2    0.05     1.0   64    65           65    +1
3    Whispering Green     4    60.0    3    1.75     0.5   54    69           69    +15
4    Fashionigma          3    60.0    4    2.05     1.0   65    68           68    +3
5    Green Sleeves        3    60.0    5    2.35     1.0   57    67           67    +10
6    American Style       3    60.0    6    7.25     1.0   59    65           65    +6
7    Graphene Aerogel     3    60.0    7    9.15     1.0   61    65           65    +4
8    Embarras De Riches   4    58.5    8    10.95    0.5   55    63           63    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Winter Melody Line 65 68 65 +3 1.0
2 Forged In Ice 64 57 65 -8 1.0 -
3 Whispering Green 54 49 69 -20 0.5 -
4 Fashionigma 65 50 68 -18 1.0 -
5 Green Sleeves 57 56 67 -11 1.0 -
6 American Style 59 60 65 -5 1.0 -
7 Graphene Aerogel 61 59 65 -6 1.0 -
8 Embarras De Riches 55 55 63 -8 0.5 -
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