Official NHA Assessment

Race 2: WWW.TAB4RACING.COM MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Messalina
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    Mary Read            3    60.0    1    0.00     1.0   71    4            4     -67
2    Messalina            3    56.0    2    1.20     1.0   -     -            -     +0
3    Kommetjie Storm      2    56.0    3    1.60     0.0   -     1            1     +1
4    Flying Hafla         2    56.0    4    6.50     0.0   -     -2           -     +0
5    Blue Velvet          2    56.0    5    6.80     0.0   -     -2           -     +0
6    Villa Semaya         2    60.0    6    8.50     0.0   59    6            49    -10
7    Bacardi Babe         3    60.0    7    10.00    1.0   61    4            51    -10
8    Falcon Hill          2    56.0    8    20.25    0.0   -     -2           -     +0
9    Jilted               2    56.0    9    24.50    0.0   -     -2           -     +0
99   Ice Cap              3    57.5    99   0.00     1.0   -     -1           -1    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mary Read 71 57 4 +53 1.0 -
2 Messalina Line - 71 - +71 1.0
3 Kommetjie Storm - 96 1 +95 0.0 -
4 Flying Hafla - 73 - +73 0.0 -
5 Blue Velvet - 60 - +60 0.0 -
6 Villa Semaya 59 59 49 +10 0.0 -
7 Bacardi Babe 61 56 51 +5 1.0 -
8 Falcon Hill - 67 - +67 0.0 -
9 Jilted - 65 - +65 0.0 -
99 Ice Cap - 54 -1 +55 1.0 -
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