Official NHA Assessment

Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za CONDITIONAL GRADUATION (1 & 2 time winners)

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Line Horse
Mr Henley
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Pray For Rain        4    61.0    1    0.00     2.5   100   96           96    -4
2    Bevies Delight       5    56.5    2    2.70     0.0   102   92           92    -10
3    Sun Blushed          2    59.5    3    2.75     1.0   106   96           96    -10
4    Mr Henley            2    55.0    4    4.95     1.0   87    87           87    +0
5    Quandary             5    53.0    5    5.65     0.0   80    85           85    +5
6    Big Slick            2    55.0    6    10.15    1.0   71    87           87    +16
7    Tanganga             2    55.0    7    12.85    1.0   79    87           87    +8
99   Red Roses Too        5    52.5    99   0.00     0.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pray For Rain 100 106 96 +10 2.5 -
2 Bevies Delight 102 101 92 +9 0.0 -
3 Sun Blushed 106 120 96 +24 1.0 -
4 Mr Henley Line 87 82 87 -5 1.0
5 Quandary 80 88 85 +3 0.0 -
6 Big Slick 71 64 87 -23 1.0 -
7 Tanganga 79 66 87 -21 1.0 -
99 Red Roses Too - 82 84 -2 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