Official NHA Assessment

Race 3: CHAMPION TWO-YEAR-OLD COLT/GELDING: ESTEEMED MAIDEN 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 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
11 / 12
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     1.0   -     -            -     +0
2    Chapbook             2    60.0    2    4.50     1.0   -     -            -     +0
3    Carnarvon            2    60.0    3    6.90     1.0   -     -            -     +0
4    Palace Attack        2    60.0    4    7.40     1.0   -     -            -     +0
5    Royale Jacket        2    60.0    5    8.20     1.0   -     -            -     +0
6    Tiger's Captain      2    60.0    6    13.50    1.0   -     -            -     +0
7    All On Red           2    57.5    7    14.60    1.0   -     -            -     +0
8    Forever Canford      2    60.0    8    21.10    1.0   -     -            -     +0
9    Magwegwe             2    60.0    9    21.40    1.0   -     -            -     +0
10   In The Willows       2    60.0    10   22.80    1.0   -     -            -     +0
11   Seed Seeker          2    60.0    11   31.80    1.0   -     -            -     +0
99   Winter Belle         2    57.5    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 Jan Van Goyen - 118 - +118 1.0 -
2 Chapbook - 106 - +106 1.0 -
3 Carnarvon - 78 - +78 1.0 -
4 Palace Attack - 86 - +86 1.0 -
5 Royale Jacket - 74 - +74 1.0 -
6 Tiger's Captain - 70 - +70 1.0 -
7 All On Red - 60 - +60 1.0 -
8 Forever Canford - 67 - +67 1.0 -
9 Magwegwe - 62 - +62 1.0 -
10 In The Willows - 54 - +54 1.0 -
11 Seed Seeker - 81 - +81 1.0 -
99 Winter Belle - 70 - - 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