Official NHA Assessment

Race 8: CAPE MILE (Grade 3) (For 4-year-old Horses and older)

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Line Horse
Silver Operator
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 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    Jet Dark             4    62.0    1    0.00     4.0   130   110          110   -20
2    Silver Operator      5    61.0    2    1.75     0.0   119   119          119   +0
3    Golden Ducat         6    60.0    3    2.75     0.0   128   116          118   -10
4    Rascallion           5    60.0    4    2.95     0.0   124   116          116   -8
5    Silvano's Timer      4    60.0    5    3.45     4.0   104   107          107   +3
6    Rockin' Ringo        6    60.0    6    4.95     0.0   109   114          114   +5
7    Senso Unico          3    60.0    7    6.95     7.0   110   100          100   -10
8    Crown Towers (AUS)   6    60.0    8    7.35     0.0   113   114          114   +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jet Dark 130 130 110 +20 4.0 -
2 Silver Operator Line 119 115 119 -4 0.0
3 Golden Ducat 128 116 118 -2 0.0 -
4 Rascallion 124 124 116 +8 0.0 -
5 Silvano's Timer 104 106 107 -1 4.0 -
6 Rockin' Ringo 109 107 114 -7 0.0 -
7 Senso Unico 110 112 100 +12 7.0 -
8 Crown Towers (AUS) 113 113 114 -1 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