Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Southern Style
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
7 / 9
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    Elusive Fire         4    60.0    1    0.00     0.0   58    62           62    +4
2    Southern Style       5    60.0    2    2.25     0.0   62    62           62    +0
3    Together Again       5    60.0    3    4.50     0.0   58    62           62    +4
4    Law Of Success       3    60.0    4    5.50     2.5   67    57           57    -10
5    Shiny Silva          3    60.0    5    6.75     2.5   -     57           57    +57
6    She's A Klawer       2    60.0    6    9.75     1.5   65    59           59    -6
7    Queen's Gambit       3    60.0    7    12.00    2.5   40    57           57    +17
8    Heartlight           2    60.0    8    18.00    1.5   59    59           59    +0
99   Efficient Trader     2    60.0    99   0.00     1.5   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Elusive Fire 58 63 62 +1 0.0 -
2 Southern Style Line 62 54 62 -8 0.0
3 Together Again 58 55 62 -7 0.0 -
4 Law Of Success 67 81 57 +24 2.5 -
5 Shiny Silva - 42 57 -15 2.5 -
6 She's A Klawer 65 50 59 -9 1.5 -
7 Queen's Gambit 40 46 57 -11 2.5 -
8 Heartlight 59 48 59 -11 1.5 -
99 Efficient Trader - 57 59 -2 1.5 -
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