Official NHA Assessment

Race 7: WWW.TAB4RACING.COM MIDDLE STAKES (For horses with nett rating of 105 and below)

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Line Horse
Nkandla Gold
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
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    Magic Tattoo         5    60.0    1    0.00     0.0   99    118          105   +6
2    Chocolate Soldier    3    55.5    2    1.75     7.5   104   94           94    -10
3    Nkandla Gold         4    52.0    3    2.50     9.0   84    84           84    +0
4    Swing Upon A Star    2    56.0    4    3.25     5.0   99    100          100   +1
5    Smith And Wesson     2    50.0    5    4.50     5.0   81    88           88    +7
6    Simply Majestic      3    54.5    6    4.60     7.5   102   92           92    -10
7    Dontshootthebarman   5    54.0    7    5.10     0.0   88    106          106   +18
99   After The Rain       4    60.0    99   0.00     9.0   -     100          100   +0
99   French Bolt          3    56.0    99   0.00     7.5   -     95           95    +0
99   Tchaikovsky          6    52.0    99   0.00     0.0   -     102          102   +0
99   Elegant Ice          4    58.5    99   0.00     9.0   -     97           97    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Magic Tattoo 99 93 105 -12 0.0 -
2 Chocolate Soldier 104 108 94 +14 7.5 -
3 Nkandla Gold Line 84 63 84 -21 9.0
4 Swing Upon A Star 99 102 100 +2 5.0 -
5 Smith And Wesson 81 73 88 -15 5.0 -
6 Simply Majestic 102 85 92 -7 7.5 -
7 Dontshootthebarman 88 93 106 -13 0.0 -
99 After The Rain - 98 100 -2 9.0 -
99 French Bolt - 92 95 -3 7.5 -
99 Tchaikovsky - 81 102 -21 0.0 -
99 Elegant Ice - 108 97 +11 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