Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (For Maidens. R15 000 Win bonus ROA Members)

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Line Horse
House Of Sussex
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 10
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    Lucky Spirit         3    59.0    1    0.00     8.5   74    59           59    -15
2    House Of Sussex      4    60.0    2    3.50     10.0  58    58           58    +0
3    Son Of Erupt         2    59.0    3    4.75     5.5   76    65           66    -10
4    Brooksider           3    59.0    4    5.00     8.5   73    59           63    -10
5    Choc' Late           3    57.5    5    5.75     8.5   55    56           56    +1
6    Gotcha Buzz          2    57.5    6    7.00     5.5   60    62           62    +2
7    And Action           4    60.0    7    9.25     10.0  65    58           58    -7
8    Mafiabagsthemoney    5    60.0    8    18.50    0.0   23    78           78    +55
9    Power And Profit     3    59.0    9    19.75    8.5   -     59           59    +59
10   Luck Struck          4    60.0    10   21.00    10.0  -     58           58    +58
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lucky Spirit 74 70 59 +11 8.5 -
2 House Of Sussex Line 58 50 58 -8 10.0
3 Son Of Erupt 76 74 66 +8 5.5 -
4 Brooksider 73 55 63 -8 8.5 -
5 Choc' Late 55 56 56 ✓ Match 8.5 -
6 Gotcha Buzz 60 61 62 -1 5.5 -
7 And Action 65 62 58 +4 10.0 -
8 Mafiabagsthemoney 23 39 78 -39 0.0 -
9 Power And Profit - - 59 -59 8.5 -
10 Luck Struck - 30 58 -28 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