Official NHA Assessment

Race 3: www.tabgold.co.za CLASS 5 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 66)

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Line Horse
Swiss Paradise
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 8
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    Drive By             6    53.0    1    0.00     0.0   60    61           61    +1
2    Mamas Baby           4    61.0    2    0.60     5.0   68    67           67    -1
3    Swiss Paradise       3    55.5    3    3.10     4.5   57    57           57    +0
4    Chakpori             3    56.0    4    3.40     4.5   72    58           62    -10
5    Glamorz              3    62.0    5    4.30     4.5   76    70           70    -6
6    Quentasia            4    53.5    6    4.55     5.0   53    52           52    -1
7    Sweet Julia          2    60.5    7    5.95     3.0   67    70           70    +3
8    Chef's Kiss          4    50.5    8    8.25     5.0   50    46           46    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Drive By 60 68 61 +7 0.0 -
2 Mamas Baby 68 65 67 -2 5.0 -
3 Swiss Paradise Line 57 60 57 +3 4.5
4 Chakpori 72 64 62 +2 4.5 -
5 Glamorz 76 62 70 -8 4.5 -
6 Quentasia 53 58 52 +6 5.0 -
7 Sweet Julia 67 73 70 +3 3.0 -
8 Chef's Kiss 50 46 46 ✓ Match 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