Official NHA Assessment

Race 2: www.caperacing.co.za CLASS 4 (Open. Benchmark at 60.0kg = 78)

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Line Horse
Transact
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 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    Swift Action         3    54.0    1    0.00     3.0   66    66           66    +0
2    Transact             3    61.5    2    2.00     3.0   81    81           81    +0
3    Poltergeist          3    57.0    3    2.20     3.0   72    72           72    +0
4    Winter Pearl         6    53.0    4    2.30     0.0   64    70           70    +6
5    Charlie Malone       5    55.0    5    5.30     0.0   72    74           74    +2
6    Persistance          3    52.0    6    5.80     3.0   55    62           62    +7
7    Fort Red             4    60.0    7    8.05     3.5   78    77           77    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Swift Action 66 77 66 +11 3.0 -
2 Transact Line 81 77 81 -4 3.0
3 Poltergeist 72 71 72 -1 3.0 -
4 Winter Pearl 64 71 70 +1 0.0 -
5 Charlie Malone 72 71 74 -3 0.0 -
6 Persistance 55 50 62 -12 3.0 -
7 Fort Red 78 66 77 -11 3.5 -
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