Official NHA Assessment

Race 4: www.tabgold.co.za CLASS 5 (Open. Benchmark at 60.0kg = 66)

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Line Horse
Connoisseur
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 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    Galaxy Explorer      4    56.5    1    0.00     3.0   60    56           56    -4
2    Animal Impact        4    58.0    2    0.50     3.0   63    64           64    +1
3    Connoisseur          4    56.0    3    1.20     3.0   59    59           59    +0
4    King Bavarian        5    54.5    4    2.90     0.0   55    60           60    +5
5    Sweeter Than Honey   5    54.5    5    2.95     0.0   58    60           60    +2
6    Double Olympic       4    58.5    6    5.05     3.0   64    60           60    -4
7    Noble Warrior        4    55.0    7    6.05     3.0   57    53           53    -4
8    Bob                  3    60.5    8    7.95     6.0   68    58           58    -10
9    Tom's Act            3    59.0    9    14.55    6.0   64    55           55    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Galaxy Explorer 60 60 56 +4 3.0 -
2 Animal Impact 63 64 64 ✓ Match 3.0 -
3 Connoisseur Line 59 56 59 -3 3.0
4 King Bavarian 55 67 60 +7 0.0 -
5 Sweeter Than Honey 58 56 60 -4 0.0 -
6 Double Olympic 64 53 60 -7 3.0 -
7 Noble Warrior 57 54 53 +1 3.0 -
8 Bob 68 52 58 -6 6.0 -
9 Tom's Act 64 64 55 +9 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