Official NHA Assessment

Race 8: www.galloptv.co.za CLASS 5 (Open. Benchmark at 60.0kg = 66)

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Line Horse
Attaboy
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
6 / 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    Lions Eye            2    60.0    1    0.00     0.0   66    68           68    +2
2    In The Bag           4    57.5    2    1.20     5.0   61    57           57    -4
3    Attaboy              2    55.0    3    1.70     0.0   61    61           61    +0
4    Iron Will            4    57.0    4    3.60     5.0   60    53           53    -7
5    Porfirio             6    59.5    5    3.65     0.0   65    68           68    +3
6    Lou Lou The Legend   3    55.5    6    3.70     8.0   57    44           47    -10
7    Mamas Baby           4    60.5    7    5.40     5.0   67    59           59    -8
8    Phaka Imali          3    58.0    8    5.70     8.0   67    48           57    -10
9    Lake Como            3    58.5    9    6.20     8.0   66    49           56    -10
10   Ultra Quick          6    57.5    10   9.10     0.0   69    63           63    -6
11   Professor Lupin      4    59.5    11   12.40    5.0   65    57           57    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lions Eye 66 68 68 ✓ Match 0.0 -
2 In The Bag 61 61 57 +4 5.0 -
3 Attaboy Line 61 65 61 +4 0.0
4 Iron Will 60 63 53 +10 5.0 -
5 Porfirio 65 88 68 +20 0.0 -
6 Lou Lou The Legend 57 59 47 +12 8.0 -
7 Mamas Baby 67 65 59 +6 5.0 -
8 Phaka Imali 67 62 57 +5 8.0 -
9 Lake Como 66 61 56 +5 8.0 -
10 Ultra Quick 69 71 63 +8 0.0 -
11 Professor Lupin 65 67 57 +10 5.0 -
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