Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY OPEN MAIDEN (For all Maidens)

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Line Horse
Mont Tremblant
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 7
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    Tori's Girl          3    52.0    1    0.00     7.0   53    47           47    -6
2    Terminal Velocity    2    59.0    2    1.75     0.0   68    80           80    +12
3    Mont Tremblant       3    55.5    3    3.50     7.0   57    57           57    +0
4    Sugar Baby Love      3    48.0    4    10.75    7.0   66    39           56    -10
5    Nuclear Power        2    53.5    5    16.00    0.0   65    64           64    -1
6    Two For The Boys     3    56.0    6    25.00    7.0   66    55           56    -10
99   Aethelwulf           2    55.5    99   0.00     0.0   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tori's Girl 53 59 47 +12 7.0 -
2 Terminal Velocity 68 68 80 -12 0.0 -
3 Mont Tremblant Line 57 56 57 -1 7.0
4 Sugar Baby Love 66 67 56 +11 7.0 -
5 Nuclear Power 65 60 64 -4 0.0 -
6 Two For The Boys 66 61 56 +5 7.0 -
99 Aethelwulf - 66 68 -2 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