Official NHA Assessment

Race 6: OPEN A TABGOLD ACCOUNT - 031 314 1874 PINNACLE STAKES (For All Horses)

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Line Horse
Quasiforsure
Reference for assessment
Exact Matches
1 / 17
Calculated = Official
Close Matches
3 / 17
Within 2 points
Significant Diffs
12 / 17
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    William Robertson    6    59.5    1    0.00     0.0   125   125          125   +0
2    Quasiforsure         4    62.0    2    1.90     7.0   116   116          116   +0
3    Sun Blushed          2    60.5    3    2.90     4.0   120   119          119   -1
4    Proud Master         3    53.5    4    3.60     6.0   103   101          101   -2
5    Kupholiwe            2    55.5    5    3.70     4.0   96    109          109   +13
6    Ancient World        2    52.5    6    4.00     4.0   90    103          103   +13
7    Strathclyde          3    54.0    7    4.80     6.0   97    102          102   +5
8    African Skyline      6    52.5    8    5.30     0.0   97    111          111   +14
9    Quandary             5    53.5    9    5.50     0.0   92    113          113   +21
10   Donquerari           5    57.5    10   6.10     0.0   102   121          121   +19
11   Formagear            5    59.5    11   6.20     0.0   108   125          125   +17
12   Imilenzeyokududuma   6    58.5    12   6.35     0.0   104   123          123   +19
13   Captain Bombshell    2    58.5    13   6.95     4.0   105   115          115   +10
14   Narina Trogon        5    58.5    14   10.25    0.0   106   123          123   +17
15   Nelson Bay           4    55.0    15   22.85    7.0   95    102          102   +7
99   Smorgasbord          6    52.5    99   0.00     0.0   -     111          111   +0
99   Ibhele               3    51.0    99   0.00     6.0   -     96           96    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 William Robertson 125 124 125 -1 0.0 -
2 Quasiforsure Line 116 116 116 ✓ Match 7.0
3 Sun Blushed 120 120 119 +1 4.0 -
4 Proud Master 103 97 101 -4 6.0 -
5 Kupholiwe 96 94 109 -15 4.0 -
6 Ancient World 90 85 103 -18 4.0 -
7 Strathclyde 97 97 102 -5 6.0 -
8 African Skyline 97 98 111 -13 0.0 -
9 Quandary 92 88 113 -25 0.0 -
10 Donquerari 102 86 121 -35 0.0 -
11 Formagear 108 108 125 -17 0.0 -
12 Imilenzeyokududuma 104 109 123 -14 0.0 -
13 Captain Bombshell 105 106 115 -9 4.0 -
14 Narina Trogon 106 102 123 -21 0.0 -
15 Nelson Bay 95 90 102 -12 7.0 -
99 Smorgasbord - 77 111 -34 0.0 -
99 Ibhele - 70 96 -26 6.0 -
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