Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN 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 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 10
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    Easy Tiger           2    57.5    1    0.00     3.5   -     -            -     +0
2    Zacatoo              2    60.0    2    2.25     3.5   -     -            -     +0
3    Tenjiku              2    60.0    3    2.45     3.5   -     -            -     +0
4    Bright And Brazen    2    57.5    4    7.25     3.5   -     -            -     +0
5    Nyaka Nyaka          2    60.0    5    7.65     3.5   -     -            -     +0
6    Sylvan Warrior       2    60.0    6    10.25    3.5   -     -            -     +0
7    Truly Magical        2    57.5    7    10.30    3.5   -     -            -     +0
8    Westward Girl        2    57.5    8    14.80    3.5   -     -            -     +0
9    Jazz Away            2    57.5    9    15.20    3.5   -     -            -     +0
99   Porridge Boy         2    60.0    99   0.00     3.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Easy Tiger - 101 - +101 3.5 -
2 Zacatoo - 88 - +88 3.5 -
3 Tenjiku - 96 - +96 3.5 -
4 Bright And Brazen - 97 - +97 3.5 -
5 Nyaka Nyaka - 101 - +101 3.5 -
6 Sylvan Warrior - 101 - +101 3.5 -
7 Truly Magical - 67 - +67 3.5 -
8 Westward Girl - 64 - +64 3.5 -
9 Jazz Away - 64 - +64 3.5 -
99 Porridge Boy - 101 - - 3.5 -
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