Official NHA Assessment

Race 2: WWW.TAB4RACING.COM MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Marquez
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
9 / 11
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    Walled Garden        4    60.0    1    0.00     9.0   -     66           6     +6
2    Marquez              3    60.0    2    1.10     7.5   69    69           69    +0
3    William Blake        2    59.0    3    1.75     5.0   -     72           72    +72
4    Remains Of The Day   3    59.0    4    5.50     7.5   -     67           67    +67
5    Act Of Power         3    59.0    5    6.25     7.5   -     67           67    +67
6    Bregardt             4    55.0    6    8.00     9.0   79    56           69    -10
7    Charge Ahead         2    59.0    7    8.10     5.0   74    72           72    -2
8    Theres A Light       4    59.0    8    10.75    9.0   -     64           64    +64
9    Nkandla Gold         4    57.5    9    18.00    9.0   69    61           61    -8
10   Statesman            2    59.0    10   40.00    5.0   -     72           72    +72
99   Presley              4    59.0    99   0.00     9.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Walled Garden - 66 6 +60 9.0 -
2 Marquez Line 69 69 69 ✓ Match 7.5
3 William Blake - - 72 -72 5.0 -
4 Remains Of The Day - 60 67 -7 7.5 -
5 Act Of Power - 50 67 -17 7.5 -
6 Bregardt 79 52 69 -17 9.0 -
7 Charge Ahead 74 57 72 -15 5.0 -
8 Theres A Light - 76 64 +12 9.0 -
9 Nkandla Gold 69 63 61 +2 9.0 -
10 Statesman - 63 72 -9 5.0 -
99 Presley - 90 64 +26 9.0 -
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