Official NHA Assessment

Race 1: SF LOGISTICS LINE HAUL MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
When Evening Comes
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 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    Winter Frolic        2    56.0    1    0.00     0.0   -     55           6     +6
2    Vermacilli           3    60.0    2    1.90     0.5   65    65           65    +0
3    Kitty Mo             2    56.0    3    4.30     0.0   -     55           55    +55
4    When Evening Comes   5    60.0    4    4.70     0.0   63    63           63    +0
5    Nonoti               2    58.5    5    6.20     0.0   66    60           60    -6
6    Ana Noba             5    60.0    6    6.35     0.0   60    63           63    +3
7    Valli Gal            2    56.0    7    7.75     0.0   -     55           55    +55
8    Silken Lace          2    60.0    8    9.25     0.0   48    63           63    +15
9    Soar Like An Eagle   3    60.0    9    10.85    0.5   -     62           62    +62
10   Perfect Planet       2    56.0    10   11.15    0.0   -     55           55    +55
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Winter Frolic - 61 6 +55 0.0 -
2 Vermacilli 65 54 65 -11 0.5 -
3 Kitty Mo - 69 55 +14 0.0 -
4 When Evening Comes Line 63 58 63 -5 0.0
5 Nonoti 66 57 60 -3 0.0 -
6 Ana Noba 60 50 63 -13 0.0 -
7 Valli Gal - 65 55 +10 0.0 -
8 Silken Lace 48 54 63 -9 0.0 -
9 Soar Like An Eagle - 35 62 -27 0.5 -
10 Perfect Planet - 52 55 -3 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