Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA / CRS 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
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    Varvara              2    60.0    1    0.00     0.0   -     -            -     +0
2    Mountain High        3    60.0    2    2.00     2.0   -     -            -     +0
3    Hat's Queen          3    60.0    3    3.00     2.0   -     -            -     +0
4    Key Worker           3    60.0    4    3.25     2.0   -     -            -     +0
5    Radiant Heat         3    60.0    5    3.75     2.0   -     -            -     +0
6    African Beauty       2    60.0    6    8.00     0.0   -     -            -     +0
7    Party Punch          3    60.0    7    12.50    2.0   -     -            -     +0
8    Jadese               2    60.0    8    27.00    0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Varvara - 98 - +98 0.0 -
2 Mountain High - 82 - +82 2.0 -
3 Hat's Queen - 104 - +104 2.0 -
4 Key Worker - 84 - +84 2.0 -
5 Radiant Heat - 72 - +72 2.0 -
6 African Beauty - 66 - +66 0.0 -
7 Party Punch - 62 - +62 2.0 -
8 Jadese - 47 - +47 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