Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN JUVENILE PLATE (Fillies) (For 2 year old fillies)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 7
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    Move On Over         2    60.0    1    0.00     1.0   -     -            -     +0
2    Golden Pacific       2    60.0    2    5.50     1.0   -     -            -     +0
3    Bella Attrice        2    60.0    3    7.50     1.0   -     -            -     +0
4    Time For Katie       2    60.0    4    11.75    1.0   -     -            -     +0
5    Ursern Valley        2    60.0    5    14.00    1.0   -     -            -     +0
6    Nepal                2    60.0    6    27.00    1.0   -     -            -     +0
99   Sunset Roar          2    60.0    99   0.00     1.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Move On Over - 79 - +79 1.0 -
2 Golden Pacific - 93 - +93 1.0 -
3 Bella Attrice - 66 - +66 1.0 -
4 Time For Katie - 52 - +52 1.0 -
5 Ursern Valley - 45 - +45 1.0 -
6 Nepal - 39 - +39 1.0 -
99 Sunset Roar - 57 - - 1.0 -
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