Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA / RCS Bonus)

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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
0 / 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    Grande Hawaii        2    60.0    1    0.00     2.5   -     -            -     +0
2    Proud Mary           2    60.0    2    3.00     2.5   -     -            -     +0
3    Heavenly Lace        2    60.0    3    15.25    2.5   -     -            -     +0
4    Drachenfutter        2    60.0    4    17.00    2.5   -     -            -     +0
5    Sitva Queen          2    60.0    5    25.50    2.5   -     -            -     +0
6    Regal Queen          2    60.0    6    26.75    2.5   -     -            -     +0
99   Platinum Shay        2    60.0    99   0.00     2.5   -     -            -     +0
99   Miss Dutton          2    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 Grande Hawaii - - - - 2.5 -
2 Proud Mary - - - - 2.5 -
3 Heavenly Lace - - - - 2.5 -
4 Drachenfutter - - - - 2.5 -
5 Sitva Queen - - - - 2.5 -
6 Regal Queen - - - - 2.5 -
99 Platinum Shay - - - - 2.5 -
99 Miss Dutton - - - - 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