Official NHA Assessment

Race 5: WSB Play with the Best MIDDLE STAKES (F & M) (For Fillies and Mares with a Nett Rating of 102 & below)

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Line Horse
Khethiwe's Destiny
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
5 / 12
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    Bevies Delight       5    60.0    1    0.00     0.0   97    103          103   +6
2    Sohot Sowhat         3    55.5    2    0.10     1.5   87    91           91    +4
3    Two G's              3    55.5    3    1.70     1.5   89    94           94    +5
4    Gerbera              3    60.0    4    3.90     1.5   99    101          101   +2
5    Khethiwe's Destiny   3    60.0    5    4.30     1.5   100   100          100   +0
6    Sonic Jet            3    58.5    6    6.60     1.5   95    97           97    +2
7    Princess Goldie      3    48.5    7    6.65     1.5   77    77           77    +0
8    Captain Peg          5    61.5    8    8.05     0.0   102   106          106   +4
9    Go Like Flo          5    57.0    9    8.85     0.0   87    97           97    +10
10   Perilla              5    60.0    10   10.25    0.0   96    103          103   +7
99   Colorado Creek       4    54.0    99   0.00     0.5   -     90           90    +0
99   Zalta Star           3    51.0    99   0.00     1.5   -     82           82    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bevies Delight 97 101 103 -2 0.0 -
2 Sohot Sowhat 87 92 91 +1 1.5 -
3 Two G's 89 89 94 -5 1.5 -
4 Gerbera 99 98 101 -3 1.5 -
5 Khethiwe's Destiny Line 100 92 100 -8 1.5
6 Sonic Jet 95 101 97 +4 1.5 -
7 Princess Goldie 77 73 77 -4 1.5 -
8 Captain Peg 102 100 106 -6 0.0 -
9 Go Like Flo 87 85 97 -12 0.0 -
10 Perilla 96 89 103 -14 0.0 -
99 Colorado Creek - 80 90 -10 0.5 -
99 Zalta Star - 77 82 -5 1.5 -
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