Official NHA Assessment

Race 2: CLASSIC DAY 7 MARCH MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / RCS Bonus)

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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
0 / 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    Twilight             2    57.5    1    0.00     3.0   -     -            -     +0
2    Catfish              2    56.0    2    0.60     3.0   -     -            -     +0
3    Skizzle Drum         2    60.0    3    7.00     3.0   -     -            -     +0
4    Ruby Whisper         2    57.5    4    8.00     3.0   -     -            -     +0
5    Maranello            2    57.5    5    12.75    3.0   -     -            -     +0
6    Justhavefun          2    60.0    6    19.50    3.0   -     -            -     +0
99   Count Of Capri       2    60.0    99   0.00     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 Twilight - - - - 3.0 -
2 Catfish - - - - 3.0 -
3 Skizzle Drum - - - - 3.0 -
4 Ruby Whisper - - - - 3.0 -
5 Maranello - - - - 3.0 -
6 Justhavefun - - - - 3.0 -
99 Count Of Capri - - - - 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