Official NHA Assessment

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

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Line Horse
Mont Tremblant
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
0 / 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    City Of Port Louis   2    60.0    1    0.00     0.0   57    66           63    +6
2    Pick A Pomodoro      2    58.0    2    1.50     0.0   73    67           67    -6
3    Mont Tremblant       3    60.0    3    1.75     7.0   57    57           57    +0
4    Grey Warrior         2    58.0    4    2.00     0.0   72    67           67    -5
5    Two For The Boys     3    56.0    5    2.75     7.0   66    47           56    -10
6    Nuclear Power        2    54.0    6    4.00     0.0   65    56           56    -9
7    Witching Hour        2    54.5    7    5.25     0.0   76    55           66    -10
8    Fort Impreza         3    60.0    8    10.25    7.0   60    52           52    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 City Of Port Louis 57 63 63 ✓ Match 0.0 -
2 Pick A Pomodoro 73 67 67 ✓ Match 0.0 -
3 Mont Tremblant Line 57 56 57 -1 7.0
4 Grey Warrior 72 70 67 +3 0.0 -
5 Two For The Boys 66 61 56 +5 7.0 -
6 Nuclear Power 65 60 56 +4 0.0 -
7 Witching Hour 76 68 66 +2 0.0 -
8 Fort Impreza 60 56 52 +4 7.0 -
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