Official NHA Assessment

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

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Line Horse
Rio Supremo
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Fort Lauderdale      2    58.5    1    0.00     2.0   71    60           60    -11
2    Someday Maybe        3    57.5    2    0.05     3.0   -     56           56    +56
3    Signora Bomba        2    54.5    3    4.50     2.0   -     52           52    +52
4    Rio Supremo          3    57.5    4    5.25     3.0   56    56           56    +0
5    Forever Free         4    60.0    5    7.50     3.5   55    60           60    +5
6    Tiny Dancer          2    57.5    6    10.75    2.0   -     58           58    +58
7    Adrenaline Rush      2    57.5    7    14.00    2.0   56    58           58    +2
99   I Am Who I Am        2    57.5    99   0.00     2.0   -     58           58    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Fort Lauderdale 71 85 60 +25 2.0 -
2 Someday Maybe - 56 56 ✓ Match 3.0 -
3 Signora Bomba - 69 52 +17 2.0 -
4 Rio Supremo Line 56 52 56 -4 3.0
5 Forever Free 55 56 60 -4 3.5 -
6 Tiny Dancer - 35 58 -23 2.0 -
7 Adrenaline Rush 56 45 58 -13 2.0 -
99 I Am Who I Am - 64 58 +6 2.0 -
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