Official NHA Assessment

Race 7: OPEN A TABGOLD ACCOUNT - 031 314 1874 MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Passage Of Power
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
8 / 13
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    Kupholiwe            2    59.0    1    0.00     4.0   94    79           79    -15
2    Passage Of Power     6    61.0    2    0.30     0.0   91    91           91    +0
3    Super Fast           5    57.0    3    1.70     0.0   80    83           83    +3
4    Ishnana              7    58.0    4    2.00     0.0   82    85           85    +3
5    Mr Henley            2    58.0    5    2.20     4.0   82    77           77    -5
6    Honshu               2    55.5    6    3.70     4.0   83    72           73    -10
7    Winter Baron         2    56.5    7    4.60     4.0   85    74           75    -10
8    The Gliding Fish     6    56.0    8    5.10     0.0   76    81           81    +5
9    Captain Wara         2    59.0    9    6.50     4.0   94    79           84    -10
10   Rapid Fire           4    54.0    10   7.20     7.0   78    63           68    -10
11   Neitherherenorther   3    58.0    11   16.90    6.0   82    73           73    -9
99   Licence To Thrill    4    57.0    99   0.00     7.0   -     69           69    +0
99   Blackwhitedynamite   3    59.0    99   0.00     6.0   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kupholiwe 94 94 79 +15 4.0 -
2 Passage Of Power Line 91 76 91 -15 0.0
3 Super Fast 80 83 83 ✓ Match 0.0 -
4 Ishnana 82 83 85 -2 0.0 -
5 Mr Henley 82 82 77 +5 4.0 -
6 Honshu 83 71 73 -2 4.0 -
7 Winter Baron 85 81 75 +6 4.0 -
8 The Gliding Fish 76 68 81 -13 0.0 -
9 Captain Wara 94 90 84 +6 4.0 -
10 Rapid Fire 78 72 68 +4 7.0 -
11 Neitherherenorther 82 90 73 +17 6.0 -
99 Licence To Thrill - 98 69 +29 7.0 -
99 Blackwhitedynamite - 86 75 +11 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