Official NHA Assessment

Race 2: RACING TODAY JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus)

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Line Horse
Doesyourmotherknow
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
0 / 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    Sheriff Bill Brown   2    60.0    1    0.00     0.0   -     3            3     +3
2    Doesyourmotherknow   2    57.0    2    2.25     0.0   -     -            -     +0
3    Spirit Of Gabz       2    58.5    3    5.25     0.0   -     -            -     +0
4    What A Warrior       2    60.0    4    5.45     0.0   -     3            3     +3
5    Gus On The Bus       2    57.0    5    8.95     0.0   -     -3           -     +0
6    Dear Doc             2    60.0    6    10.20    0.0   -     3            3     +3
7    Lone Horizon         2    60.0    7    16.45    0.0   -     3            3     +3
99   The Name Of Dladla   2    57.0    99   0.00     0.0   -     -3           -3    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sheriff Bill Brown - - 3 - 0.0 -
2 Doesyourmotherknow Line - - - - 0.0
3 Spirit Of Gabz - - - - 0.0 -
4 What A Warrior - - 3 - 0.0 -
5 Gus On The Bus - - - - 0.0 -
6 Dear Doc - - 3 - 0.0 -
7 Lone Horizon - - 3 - 0.0 -
99 The Name Of Dladla - - -3 - 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