Official NHA Assessment

Race 6: CHAMPION JUVENILE CUP (Listed) (For 2 year olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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 Prawn           2    60.0    1    0.00     0.0   -     -            -     +0
2    Royal City Girl      2    57.5    2    0.05     0.0   -     -            -     +0
3    Arlu                 2    60.0    3    0.55     0.0   -     -            -     +0
4    Ready                2    60.0    4    1.30     0.0   -     -            -     +0
5    Barolo               2    57.5    5    3.30     0.0   -     -            -     +0
6    Augusta Rosso        2    57.5    6    7.55     0.0   -     -            -     +0
7    Silvan Mistress      2    57.5    7    8.80     0.0   -     -            -     +0
8    Star Of Elena        2    57.5    8    10.55    0.0   -     -            -     +0
99   Make Believe         2    57.5    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 King Prawn - 98 - +98 0.0 -
2 Royal City Girl - 93 - +93 0.0 -
3 Arlu - 68 - +68 0.0 -
4 Ready - 95 - +95 0.0 -
5 Barolo - 79 - +79 0.0 -
6 Augusta Rosso - 86 - +86 0.0 -
7 Silvan Mistress - 91 - +91 0.0 -
8 Star Of Elena - 74 - +74 0.0 -
99 Make Believe - 81 - - 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