Official NHA Assessment

Race 4: BETWAY BACK THE BOKS MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Trip To States
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Duke Of Rock         3    57.5    1    0.00     9.5   -     44           6     +6
2    Theres A Light       4    58.0    2    0.25     11.0  -     42           42    +42
3    Trip To States       5    60.0    3    1.25     0.0   68    68           68    +0
4    Peak Predator        4    58.0    4    3.50     11.0  -     42           42    +42
5    Eiger Sanction       3    58.0    5    4.75     9.5   -     45           45    +45
6    Bregardt             4    58.0    6    5.00     11.0  85    42           75    -10
7    Trexcellent          2    58.0    7    99.99    6.5   -     51           51    +51
99   Anamericaninvenice   2    58.0    99   0.00     6.5   -     51           51    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Duke Of Rock - 76 6 +70 9.5 -
2 Theres A Light - 76 42 +34 11.0 -
3 Trip To States Line 68 63 68 -5 0.0
4 Peak Predator - 57 42 +15 11.0 -
5 Eiger Sanction - 79 45 +34 9.5 -
6 Bregardt 85 52 75 -23 11.0 -
7 Trexcellent - - 51 -51 6.5 -
99 Anamericaninvenice - 76 51 +25 6.5 -
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