Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Fulliautomatix
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Nettleton            3    57.5    1    0.00     3.5   -     61           6     +6
2    Iron Sky             3    60.0    2    1.00     3.5   70    66           66    -4
3    Viva De Janeiro      5    60.0    3    1.40     0.0   -     73           73    +73
4    Fulliautomatix       3    60.0    4    2.25     3.5   66    66           66    +0
5    Flying Broomstick    3    57.5    5    5.00     3.5   -     61           61    +61
6    African Twilight     3    60.0    6    9.25     3.5   -     66           66    +66
7    Green Dynamite       3    60.0    7    9.75     3.5   -     66           66    +66
8    Arrow Sky            4    57.5    8    11.25    4.0   57    60           60    +3
99   Cash Charger         3    57.5    99   0.00     3.5   -     61           61    +0
99   Sprota               3    57.5    99   0.00     3.5   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nettleton - 100 6 +94 3.5 -
2 Iron Sky 70 61 66 -5 3.5 -
3 Viva De Janeiro - 50 73 -23 0.0 -
4 Fulliautomatix Line 66 66 66 ✓ Match 3.5
5 Flying Broomstick - 52 61 -9 3.5 -
6 African Twilight - 52 66 -14 3.5 -
7 Green Dynamite - 42 66 -24 3.5 -
8 Arrow Sky 57 50 60 -10 4.0 -
99 Cash Charger - - 61 -61 3.5 -
99 Sprota - - 61 -61 3.5 -
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