Official NHA Assessment

Race 3: PERFECTLY PLACED JUVENILE PLATE (Fillies) (For 2 year old fillies)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Artiste              2    58.0    1    0.00     0.0   -     -            -     +0
2    In The Green Zone    3    58.0    2    1.25     0.5   -     -            -     +0
3    Sahara Cat           3    60.0    3    3.50     0.5   -     -            -     +0
4    Polynomial           3    58.0    4    4.25     0.5   -     -            -     +0
5    Maritzburg Memory    2    58.0    5    5.00     0.0   -     -            -     +0
6    Night In Japan       3    55.0    6    8.75     0.5   -     -            -     +0
7    Am Still Winning     3    55.0    7    13.00    0.5   -     -            -     +0
8    Girl About Town      2    55.0    8    25.00    0.0   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Artiste - 90 - +90 0.0 -
2 In The Green Zone - 76 - +76 0.5 -
3 Sahara Cat - 79 - +79 0.5 -
4 Polynomial - 79 - +79 0.5 -
5 Maritzburg Memory - 74 - +74 0.0 -
6 Night In Japan - 49 - +49 0.5 -
7 Am Still Winning - 51 - +51 0.5 -
8 Girl About Town - 60 - +60 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