Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win 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
6 / 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    Daisy Jones          2    60.0    1    0.00     0.0   -     -            -     +0
2    Scarlett Heart       2    60.0    2    1.60     0.0   -     -            -     +0
3    Rejuvenate           2    60.0    3    3.80     0.0   -     -            -     +0
4    Utsaah               2    60.0    4    7.10     0.0   -     -            -     +0
5    Sapphire Sun         2    60.0    5    7.35     0.0   -     -            -     +0
6    Zahra Dominia        2    60.0    6    8.10     0.0   -     -            -     +0
99   Stampede Ahead       2    60.0    99   0.00     0.0   -     -            -     +0
99   Matcha Mint          2    60.0    99   0.00     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 Daisy Jones - 108 - +108 0.0 -
2 Scarlett Heart - 108 - +108 0.0 -
3 Rejuvenate - 79 - +79 0.0 -
4 Utsaah - 77 - +77 0.0 -
5 Sapphire Sun - 71 - +71 0.0 -
6 Zahra Dominia - 70 - +70 0.0 -
99 Stampede Ahead - 76 - - 0.0 -
99 Matcha Mint - 83 - - 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