Official NHA Assessment

Race 4: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Villa Semaya
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 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    Leonessa             2    57.0    1    0.00     0.0   77    75           75    -2
2    Villa Semaya         2    57.0    2    3.00     0.0   77    77           77    +0
3    Duellona             2    57.0    3    8.25     0.0   66    75           75    +9
4    Mount Etna           4    57.0    4    9.00     7.0   72    61           62    -10
5    She's A Klawer       2    60.0    5    12.25    0.0   57    81           81    +24
6    Flying Broomstick    3    60.0    6    16.50    9.0   61    63           63    +2
7    Dame Colleen         3    60.0    7    20.50    9.0   41    63           63    +22
8    Coffee In Brazil     3    60.0    8    21.75    9.0   52    63           63    +11
9    Perini Palace        4    57.0    9    30.00    7.0   50    61           61    +11
10   Queen Of Verona      2    54.5    10   35.00    0.0   35    70           70    +35
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Leonessa 77 56 75 -19 0.0 -
2 Villa Semaya Line 77 59 77 -18 0.0
3 Duellona 66 58 75 -17 0.0 -
4 Mount Etna 72 79 62 +17 7.0 -
5 She's A Klawer 57 50 81 -31 0.0 -
6 Flying Broomstick 61 52 63 -11 9.0 -
7 Dame Colleen 41 46 63 -17 9.0 -
8 Coffee In Brazil 52 49 63 -14 9.0 -
9 Perini Palace 50 56 61 -5 7.0 -
10 Queen Of Verona 35 34 70 -36 0.0 -
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