Official NHA Assessment

Race 7: GORDON STERLEY, HENNIE VAN WYK, HAROLD WHITEHEAD FM 96 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Wings Of Nike
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 9
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    Bold Act             3    60.0    1    0.00     3.0   96    88           96    +0
2    Coldhardstare        2    52.0    2    0.50     2.0   84    74           74    -10
3    Wings Of Nike        6    52.5    3    1.10     0.0   79    79           79    +0
4    Rozara               3    53.0    4    1.60     3.0   82    74           74    -8
5    There She Goes       6    50.5    5    1.80     0.0   74    75           75    +1
6    Rose For Trippi      2    56.0    6    2.40     2.0   92    82           82    -10
7    Big Eyed Girl        3    54.5    7    2.50     3.0   85    77           77    -8
8    Silver Winter        2    53.0    8    4.50     2.0   86    76           76    -10
99   Moonshiningthrough   3    60.0    99   0.00     3.0   -     88           88    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bold Act 96 77 96 -19 3.0 -
2 Coldhardstare 84 94 74 +20 2.0 -
3 Wings Of Nike Line 79 68 79 -11 0.0
4 Rozara 82 73 74 -1 3.0 -
5 There She Goes 74 77 75 +2 0.0 -
6 Rose For Trippi 92 80 82 -2 2.0 -
7 Big Eyed Girl 85 96 77 +19 3.0 -
8 Silver Winter 86 88 76 +12 2.0 -
99 Moonshiningthrough - 96 88 +8 3.0 -
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