Official NHA Assessment

Race 5: www.caperacing.co.za MR 78 HANDICAP (Open)

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Line Horse
Van Hunks
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 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    Night Ruler          3    60.0    1    0.00     9.0   79    79           79    +0
2    Van Hunks            3    60.5    2    0.10     9.0   80    80           80    +0
3    Tozzetti             3    56.5    3    4.85     9.0   72    72           72    +0
4    Silent War           3    61.5    4    5.85     9.0   82    82           82    +0
5    Douglas              4    52.5    5    6.15     7.0   59    68           68    +9
6    Captive Moon         6    56.5    6    7.65     0.0   72    90           90    +18
99   Portrayal            3    57.0    99   0.00     9.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Night Ruler 79 75 79 -4 9.0 -
2 Van Hunks Line 80 84 80 +4 9.0
3 Tozzetti 72 62 72 -10 9.0 -
4 Silent War 82 91 82 +9 9.0 -
5 Douglas 59 52 68 -16 7.0 -
6 Captive Moon 72 75 90 -15 0.0 -
99 Portrayal - 73 73 ✓ Match 9.0 -
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