Official NHA Assessment

Race 2: OFF THE RAILS FM 68 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Efficient Trader
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
0 / 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    Double Dream         3    60.0    1    0.00     2.0   68    68           68    +0
2    Inventrix            2    59.0    2    2.00     1.0   68    68           68    +0
3    Efficient Trader     2    56.0    3    3.70     1.0   62    62           62    +0
4    Kileigh's Fate       4    52.5    4    3.75     2.5   56    52           52    -4
5    HereInAfter          4    61.0    5    3.80     2.5   70    69           69    -1
6    Blush Of Dawn        8    57.0    6    5.40     0.0   62    66           66    +4
7    New Orleans          3    56.5    7    7.90     2.0   61    61           61    +0
8    Queen Mercury        4    54.5    8    8.30     2.5   57    56           56    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Double Dream 68 71 68 +3 2.0 -
2 Inventrix 68 73 68 +5 1.0 -
3 Efficient Trader Line 62 57 62 -5 1.0
4 Kileigh's Fate 56 48 52 -4 2.5 -
5 HereInAfter 70 72 69 +3 2.5 -
6 Blush Of Dawn 62 64 66 -2 0.0 -
7 New Orleans 61 61 61 ✓ Match 2.0 -
8 Queen Mercury 57 56 56 ✓ Match 2.5 -
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