Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU JUVENILE PLATE (For 2 yo R60 000 Win BSA Bonus Series)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
5 / 6
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    Power Broker         2    57.0    1    0.00     3.5   -     -            -     +0
2    Set To Go            2    57.0    2    1.75     3.5   -     -            -     +0
3    Thunderstruck        2    57.0    3    4.00     3.5   -     -            -     +0
4    Kuznetsov            2    57.0    4    5.25     3.5   -     -            -     +0
5    Vantage Point        2    54.5    5    20.00    3.5   -     -            -     +0
99   Thunderstone         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 Power Broker - 102 - +102 3.5 -
2 Set To Go - 84 - +84 3.5 -
3 Thunderstruck - 128 - +128 3.5 -
4 Kuznetsov - 61 - +61 3.5 -
5 Vantage Point - 62 - +62 3.5 -
99 Thunderstone - 86 - - 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