Official NHA Assessment

Race 4: www.tabgold.co.za MR 86 HANDICAP (Open)

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Line Horse
Wonderful
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 10
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    Pirate Prince        2    60.0    1    0.00     0.0   89    103          89    +0
2    Wonderful            3    57.0    2    2.00     10.0  82    82           82    +0
3    Banzai Pipeline      7    55.5    3    4.10     0.0   77    96           96    +19
4    Zakho                3    59.5    4    4.40     10.0  85    83           83    -2
5    Red William          5    59.0    5    4.45     0.0   84    102          102   +18
6    Aberdeen             2    54.5    6    4.85     0.0   77    92           92    +15
7    Cupid's Song         4    57.0    7    5.60     7.0   80    83           83    +3
8    Indlamu              4    61.5    8    7.10     7.0   89    92           92    +3
9    My Lady Soul         4    59.0    9    8.60     7.0   86    87           87    +1
99   Viva Spirit          2    61.5    99   0.00     0.0   -     106          106   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pirate Prince 89 94 89 +5 0.0 -
2 Wonderful Line 82 98 82 +16 10.0
3 Banzai Pipeline 77 62 96 -34 0.0 -
4 Zakho 85 87 83 +4 10.0 -
5 Red William 84 83 102 -19 0.0 -
6 Aberdeen 77 74 92 -18 0.0 -
7 Cupid's Song 80 79 83 -4 7.0 -
8 Indlamu 89 86 92 -6 7.0 -
9 My Lady Soul 86 86 87 -1 7.0 -
99 Viva Spirit - 72 106 -34 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