Official NHA Assessment

Race 7: CAPE RACING SALES CAPE B STAKES (F & M) (For Fillies & Mares with a nett rating of 96 & below)

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Line Horse
Great Cat
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
3 / 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    Siddeley             2    58.5    1    0.00     5.0   89    79           79    -10
2    Kyalami Girl         2    58.5    2    1.25     5.0   90    79           80    -10
3    Great Cat            5    55.5    3    2.50     0.0   83    83           83    +0
4    Japanese Rose        3    58.5    4    3.25     7.5   88    74           78    -10
5    Oni San              2    58.5    5    3.45     5.0   90    79           80    -10
6    Dark Winter          2    55.5    6    3.55     5.0   94    73           84    -10
7    Unconquerable Lady   2    61.5    7    5.55     5.0   94    85           85    -9
8    She's My Captain     3    54.0    8    7.05     7.5   81    65           71    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Siddeley 89 105 79 +26 5.0 -
2 Kyalami Girl 90 88 80 +8 5.0 -
3 Great Cat Line 83 82 83 -1 0.0
4 Japanese Rose 88 80 78 +2 7.5 -
5 Oni San 90 78 80 -2 5.0 -
6 Dark Winter 94 82 84 -2 5.0 -
7 Unconquerable Lady 94 90 85 +5 5.0 -
8 She's My Captain 81 77 71 +6 7.5 -
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