Official NHA Assessment

Race 1: 4RACING WELCOMES YOU JUVENILE PLATE (For 2 yo R100 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
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    American Graffiti    2    55.0    1    0.00     3.5   -     -            -     +0
2    Xplicit Content      4    60.0    2    1.50     6.0   -     -            -     +0
3    Linkin Navigator     2    60.0    3    1.75     3.5   -     -            -     +0
4    Circle Of Grace      4    60.0    4    1.80     6.0   -     -            -     +0
5    Godspeed             2    55.0    5    7.50     3.5   -     -            -     +0
6    Jailhouse Rebel      2    57.5    6    10.50    3.5   -     -            -     +0
7    Keiras Ranger        2    60.0    7    19.50    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 American Graffiti - 90 - +90 3.5 -
2 Xplicit Content - 58 - +58 6.0 -
3 Linkin Navigator - 77 - +77 3.5 -
4 Circle Of Grace - 51 - +51 6.0 -
5 Godspeed - 60 - +60 3.5 -
6 Jailhouse Rebel - 58 - +58 3.5 -
7 Keiras Ranger - 64 - +64 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