Official NHA Assessment

Race 2: RACEHORSE OWNERS ASSOCIATION 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 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 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    Kingdundee           3    57.0    1    0.00     3.5   -     -            -     +0
2    Frosty Reception     3    57.5    2    1.25     3.5   -     -            -     +0
3    Play Act             2    60.0    3    1.75     2.5   -     -            -     +0
4    Ravilious            3    56.0    4    2.25     3.5   -     -            -     +0
5    Hideki               2    60.0    5    5.25     2.5   -     -            -     +0
6    Willowcede           2    57.0    6    10.50    2.5   -     -            -     +0
99   Family Law           2    60.0    99   0.00     2.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kingdundee - 127 - +127 3.5 -
2 Frosty Reception - 63 - +63 3.5 -
3 Play Act - 80 - +80 2.5 -
4 Ravilious - 81 - +81 3.5 -
5 Hideki - - - - 2.5 -
6 Willowcede - 67 - +67 2.5 -
99 Family Law - 100 - - 2.5 -
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