Official NHA Assessment

Race 2: PAARL DIAMANT ESTATE MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R60 000 Win BSA Bonus Series)

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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
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Palo Queen           5    60.0    1    0.00     0.0   -     -            -     +0
2    Country Time         5    60.0    2    0.75     0.0   -     -            -     +0
3    Yaya Maria           2    60.0    3    0.80     1.0   -     -            -     +0
4    Silver Screen        2    60.0    4    1.55     1.0   -     -            -     +0
5    Ponte Vecchio        2    60.0    5    1.60     1.0   -     -            -     +0
6    Skadi                2    60.0    6    7.85     1.0   -     -            -     +0
7    My Mia               2    60.0    7    8.85     1.0   -     -            -     +0
8    Amanda Dunes         2    60.0    8    13.35    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 Palo Queen - 70 - +70 0.0 -
2 Country Time - 62 - +62 0.0 -
3 Yaya Maria - 60 - +60 1.0 -
4 Silver Screen - 70 - +70 1.0 -
5 Ponte Vecchio - 56 - +56 1.0 -
6 Skadi - 65 - +65 1.0 -
7 My Mia - 69 - +69 1.0 -
8 Amanda Dunes - 50 - +50 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