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
Sea Shanty
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 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    Coppola              4    60.0    1    0.00     6.0   -     -            -     +0
2    Sakhala Is'Cathulo   3    60.0    2    0.25     5.0   60    2            50    -10
3    Sea Shanty           4    60.0    3    1.75     6.0   -     -            -     +0
4    Dhow Solo            3    57.5    4    2.00     5.0   -     -3           -     +0
5    Out The Mist         3    57.5    5    2.25     5.0   65    -3           55    -10
6    Jumping Analia       2    54.0    6    3.25     3.5   68    -7           58    -10
7    Vathomvlaffie        2    57.5    7    9.00     3.5   73    -            67    -6
8    Ringho               4    60.0    8    15.00    6.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Coppola - 83 - +83 6.0 -
2 Sakhala Is'Cathulo 60 66 50 +16 5.0 -
3 Sea Shanty Line - 71 - +71 6.0
4 Dhow Solo - 62 - +62 5.0 -
5 Out The Mist 65 69 55 +14 5.0 -
6 Jumping Analia 68 72 58 +14 3.5 -
7 Vathomvlaffie 73 56 67 -11 3.5 -
8 Ringho - 60 - +60 6.0 -
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