Official NHA Assessment

Race 7: www.tabgold.co.za MR 99 HANDICAP (Open)

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Line Horse
Goodtime Guy
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 9
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    Prince Of Taranto    4    53.5    1    0.00     2.0   86    86           86    +0
2    Mardi Gras           7    59.5    2    0.60     0.0   98    102          102   +4
3    Courageous Cat       3    54.0    3    1.00     1.5   88    88           88    +0
4    Goodtime Guy         4    58.5    4    1.40     2.0   96    96           96    +0
5    Party Time           3    60.5    5    1.45     1.5   101   101          101   +0
6    Sashay Away          3    56.5    6    1.50     1.5   93    93           93    +0
7    Hasta Manana         3    60.5    7    1.55     1.5   101   101          101   +0
8    Ishnana              7    57.0    8    4.85     0.0   101   97           97    -4
9    Mr Fitz              6    57.0    9    5.95     0.0   93    97           97    +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prince Of Taranto 86 92 86 +6 2.0 -
2 Mardi Gras 98 83 102 -19 0.0 -
3 Courageous Cat 88 81 88 -7 1.5 -
4 Goodtime Guy Line 96 96 96 ✓ Match 2.0
5 Party Time 101 104 101 +3 1.5 -
6 Sashay Away 93 88 93 -5 1.5 -
7 Hasta Manana 101 88 101 -13 1.5 -
8 Ishnana 101 83 97 -14 0.0 -
9 Mr Fitz 93 88 97 -9 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