Official NHA Assessment

Race 4: www.tabgold.co.za MR 81 HANDICAP (Open)

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Line Horse
Time Together
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Parmenion            5    57.0    1    0.00     0.0   75    87           75    +0
2    The Gliding Fish     6    57.5    2    2.10     0.0   76    91           91    +15
3    Time Together        3    56.0    3    3.30     2.5   81    81           81    +0
4    Winter Waves         7    56.5    4    3.80     0.0   74    87           87    +13
5    Voldemort            6    61.0    5    5.30     0.0   83    95           95    +12
6    Now I Got You        5    61.0    6    6.00     0.0   83    95           95    +12
7    Crazy Blues          3    61.0    7    7.40     2.5   83    90           90    +7
8    Patronage            4    58.0    8    9.20     1.5   80    86           86    +6
99   Kimball O'Hara       2    54.0    99   0.00     0.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Parmenion 75 78 75 +3 0.0 -
2 The Gliding Fish 76 68 91 -23 0.0 -
3 Time Together Line 81 81 81 ✓ Match 2.5
4 Winter Waves 74 77 87 -10 0.0 -
5 Voldemort 83 81 95 -14 0.0 -
6 Now I Got You 83 67 95 -28 0.0 -
7 Crazy Blues 83 78 90 -12 2.5 -
8 Patronage 80 76 86 -10 1.5 -
99 Kimball O'Hara - 61 81 -20 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