Official NHA Assessment

Race 1: 4RACING WELCOMES YOU JUVENILE PLATE (For 2 yo 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    King Harald          2    59.5    1    0.00     2.5   -     -            -     +0
2    Arashi               2    60.0    2    1.30     2.5   -     -            -     +0
3    Littlemisssplendid   2    57.0    3    4.80     2.5   -     -            -     +0
4    Crystal Grove        2    60.0    4    7.00     2.5   -     -            -     +0
5    Lava County          2    59.5    5    8.50     2.5   -     -            -     +0
6    Hotaru               2    57.0    6    10.50    2.5   -     -            -     +0
7    Red Penny            2    59.5    7    10.60    2.5   -     -            -     +0
8    Lady Noir            2    57.0    8    20.00    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 King Harald - 102 - +102 2.5 -
2 Arashi - 90 - +90 2.5 -
3 Littlemisssplendid - 84 - +84 2.5 -
4 Crystal Grove - 79 - +79 2.5 -
5 Lava County - 87 - +87 2.5 -
6 Hotaru - 91 - +91 2.5 -
7 Red Penny - 85 - +85 2.5 -
8 Lady Noir - 83 - +83 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