Official NHA Assessment

Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus Series)

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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
6 / 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    Treaty Of Paris      2    60.0    1    0.00     3.0   -     -            -     +0
2    Black Frost          2    58.5    2    2.00     3.0   -     -            -     +0
3    Zacatoo              2    60.0    3    2.20     3.0   -     -            -     +0
4    Like Fire            2    60.0    4    6.60     3.0   -     -            -     +0
5    Senor Resfrio        2    60.0    5    8.90     3.0   -     -            -     +0
6    Aethelwulf           2    60.0    6    11.60    3.0   -     -            -     +0
7    Natural Law          2    57.5    7    21.40    3.0   -     -            -     +0
99   Fortress Of Fire     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 Treaty Of Paris - 100 - +100 3.0 -
2 Black Frost - 76 - +76 3.0 -
3 Zacatoo - 88 - +88 3.0 -
4 Like Fire - - - - 3.0 -
5 Senor Resfrio - 79 - +79 3.0 -
6 Aethelwulf - 66 - +66 3.0 -
7 Natural Law - 56 - +56 3.0 -
99 Fortress Of Fire - 99 - - 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