Official NHA Assessment

Race 4: CAPE TURF CLUB CAPE A STAKES (For Horses 3-years and older)

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Line Horse
Silver Darling
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
4 / 6
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    Navy Strength        3    54.0    1    0.00     3.5   99    107          105   +6
2    Master Redoute       3    54.0    2    0.75     3.5   99    113          113   +14
3    Silver Darling       3    57.5    3    0.80     3.5   120   120          120   +0
4    Somerset Maugham     4    55.5    4    8.05     1.5   101   114          114   +13
5    Silver Host          6    61.5    5    8.80     0.0   113   129          129   +16
99   Han Solo             5    57.0    99   0.00     0.0   -     120          120   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Navy Strength 99 97 105 -8 3.5 -
2 Master Redoute 99 113 113 ✓ Match 3.5 -
3 Silver Darling Line 120 115 120 -5 3.5
4 Somerset Maugham 101 97 114 -17 1.5 -
5 Silver Host 113 111 129 -18 0.0 -
99 Han Solo - 102 120 -18 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