Official NHA Assessment

Race 2: HAPPY FATHER'S DAY 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 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 8
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    Shadowfax            2    57.0    1    0.00     1.0   -     -            -     +0
2    Jan Van Goyen        2    60.0    2    0.90     1.0   -     -            -     +0
3    Nyaka Nyaka          2    60.0    3    3.30     1.0   -     -            -     +0
4    Got The Feeling      2    60.0    4    6.50     1.0   -     -            -     +0
5    The Last Duke        2    57.0    5    8.00     1.0   -     -            -     +0
6    Woensdag Koerant     2    57.0    6    9.25     1.0   -     -            -     +0
7    King Bluetooth       2    53.0    7    29.50    1.0   -     -            -     +0
99   Trust                2    57.0    99   0.00     1.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shadowfax - 102 - +102 1.0 -
2 Jan Van Goyen - 118 - +118 1.0 -
3 Nyaka Nyaka - 101 - +101 1.0 -
4 Got The Feeling - 90 - +90 1.0 -
5 The Last Duke - 102 - +102 1.0 -
6 Woensdag Koerant - 68 - +68 1.0 -
7 King Bluetooth - 53 - +53 1.0 -
99 Trust - 110 - - 1.0 -
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