Official NHA Assessment

Race 6: CHAMPION OLDER FILLY/MARE: WHITE PEARL MAIDEN PLATE (F & M) (For Maiden F & M)

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Line Horse
Lava Lamp
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Bold Action          2    56.0    1    0.00     0.0   -     -8           -     +0
2    Lava Lamp            3    60.0    2    1.80     1.5   -     -            -     +0
3    Into Dancing         2    54.5    3    2.10     0.0   -     -8           -     +0
4    Intro                3    60.0    4    3.30     1.5   70    -2           60    -10
5    Ethical              2    56.0    5    3.55     0.0   -     -7           -     +0
6    Madame Pompadour     2    60.0    6    8.30     0.0   56    -            51    -5
7    Harper's Way         3    60.0    7    8.55     1.5   -     -3           -     +0
8    Amber Eyes           3    56.0    8    9.25     1.5   53    -11          43    -10
9    Fire On Fire         2    56.0    9    9.55     0.0   -     -8           -     +0
10   Destiny Star         3    60.0    10   19.55    1.5   -     -3           -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bold Action - 62 - +62 0.0 -
2 Lava Lamp Line - 84 - +84 1.5
3 Into Dancing - 85 - +85 0.0 -
4 Intro 70 66 60 +6 1.5 -
5 Ethical - 85 - +85 0.0 -
6 Madame Pompadour 56 56 51 +5 0.0 -
7 Harper's Way - 56 - +56 1.5 -
8 Amber Eyes 53 50 43 +7 1.5 -
9 Fire On Fire - 72 - +72 0.0 -
10 Destiny Star - - - ✓ Match 1.5 -
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