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    Easy Tiger           2    60.0    1    0.00     3.0   -     -            -     +0
2    Glastonbury          2    58.5    2    0.75     3.0   -     -            -     +0
3    Caroline Island      2    60.0    3    4.00     3.0   -     -            -     +0
4    Back From War        2    57.0    4    7.50     3.0   -     -            -     +0
5    Opera Fan            2    57.0    5    10.00    3.0   -     -            -     +0
6    Queen's Pact         2    57.0    6    10.30    3.0   -     -            -     +0
7    Princess Puntano     2    57.0    7    13.30    3.0   -     -            -     +0
8    Rejuvenate           2    57.0    8    14.00    3.0   -     -            -     +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 3.0 -
2 Glastonbury - 94 - +94 3.0 -
3 Caroline Island - 88 - +88 3.0 -
4 Back From War - 86 - +86 3.0 -
5 Opera Fan - 81 - +81 3.0 -
6 Queen's Pact - 69 - +69 3.0 -
7 Princess Puntano - 68 - +68 3.0 -
8 Rejuvenate - 79 - +79 3.0 -
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