Official NHA Assessment

Race 2: NASHUA PMB MAIDEN JUVENILE PLATE (Fillies) (For 2 year old fillies)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 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    Mamas Baby           4    60.0    1    0.00     2.5   -     -            -     +0
2    Full Of Magic        4    60.0    2    0.25     2.5   -     -            -     +0
3    Fairy Tripp          2    60.0    3    1.45     1.0   -     -            -     +0
4    Jane's Vision        2    58.5    4    1.95     1.0   -     -            -     +0
5    Vision To Achieve    4    60.0    5    3.00     2.5   -     -            -     +0
6    Baby Love            2    60.0    6    3.15     1.0   -     -            -     +0
7    Algorithm            2    60.0    7    5.95     1.0   -     -            -     +0
99   Si Veloce            4    60.0    99   0.00     2.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mamas Baby - 65 - +65 2.5 -
2 Full Of Magic - 52 - +52 2.5 -
3 Fairy Tripp - 66 - +66 1.0 -
4 Jane's Vision - 65 - +65 1.0 -
5 Vision To Achieve - 87 - +87 2.5 -
6 Baby Love - 76 - +76 1.0 -
7 Algorithm - - - ✓ Match 1.0 -
99 Si Veloce - 50 - - 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