Official NHA Assessment

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

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Line Horse
Sempre Bella
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
4 / 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    Brigham              3    60.0    1    0.00     10.0  74    62           62    -12
2    Outback Express      2    56.0    2    2.75     0.0   68    77           77    +9
3    Prolific Star        3    60.0    3    5.75     10.0  67    62           62    -5
4    Sempre Bella         3    57.5    4    7.00     10.0  57    57           57    +0
5    Pick A Pomodoro      2    56.0    5    12.50    0.0   68    74           74    +6
6    Mafiabagsthemoney    5    60.0    6    19.00    0.0   35    82           82    +47
99   Global Drumbeat      3    60.0    99   0.00     10.0  -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Brigham 74 74 62 +12 10.0 -
2 Outback Express 68 71 77 -6 0.0 -
3 Prolific Star 67 64 62 +2 10.0 -
4 Sempre Bella Line 57 56 57 -1 10.0
5 Pick A Pomodoro 68 67 74 -7 0.0 -
6 Mafiabagsthemoney 35 39 82 -43 0.0 -
99 Global Drumbeat - 65 62 +3 10.0 -
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