Official NHA Assessment

Race 1: Hollywoodbets DURBANVILLE WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
Call Of The Karoo
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Call Of The Karoo    2    59.0    1    0.00     5.5   81    81           81    +0
2    Ruby Rex             3    60.0    2    0.05     8.5   75    77           77    +2
3    Take That            3    59.0    3    3.05     8.5   -     75           75    +75
4    Malibu Blitz         3    59.0    4    5.05     8.5   -     75           75    +75
5    Call Me Secret       3    59.0    5    6.30     8.5   -     75           75    +75
6    Crazy Little Thing   2    55.0    6    6.70     5.5   74    73           73    -1
7    Starting Point       3    59.0    7    7.00     8.5   -     75           75    +75
8    Miss Smiley          3    59.0    8    10.25    8.5   -     75           75    +75
9    Stormin Attack       3    55.0    9    14.25    8.5   -     67           67    +67
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Call Of The Karoo Line 81 79 81 -2 5.5
2 Ruby Rex 75 74 77 -3 8.5 -
3 Take That - - 75 -75 8.5 -
4 Malibu Blitz - 73 75 -2 8.5 -
5 Call Me Secret - 102 75 +27 8.5 -
6 Crazy Little Thing 74 66 73 -7 5.5 -
7 Starting Point - 78 75 +3 8.5 -
8 Miss Smiley - 65 75 -10 8.5 -
9 Stormin Attack - 46 67 -21 8.5 -
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