Official NHA Assessment

Race 2: CHARITY MILE 1 NOVEMBER JUVENILE PLATE (For 2 yo R100 000 Win 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
8 / 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    Jan Van Goyen        2    60.0    1    0.00     0.0   -     -            -     +0
2    Nyaka Nyaka          2    60.0    2    2.20     0.0   -     -            -     +0
3    Soho Heartthrob      2    60.0    3    2.25     0.0   -     -            -     +0
4    Shadowfax            2    60.0    4    2.30     0.0   -     -            -     +0
5    Radio Star           2    57.0    5    2.70     0.0   -     -            -     +0
6    Blizzard Quest       2    60.0    6    3.90     0.0   -     -            -     +0
7    Back From War        2    57.0    7    4.15     0.0   -     -            -     +0
8    Storm Burst          2    57.0    8    13.40    0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jan Van Goyen - 118 - +118 0.0 -
2 Nyaka Nyaka - 101 - +101 0.0 -
3 Soho Heartthrob - 91 - +91 0.0 -
4 Shadowfax - 102 - +102 0.0 -
5 Radio Star - 102 - +102 0.0 -
6 Blizzard Quest - 92 - +92 0.0 -
7 Back From War - 86 - +86 0.0 -
8 Storm Burst - 63 - +63 0.0 -
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