Official NHA Assessment

Race 4: Spina Wina PINNACLE STAKES (For Horses rated Nett 108 and below)

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Line Horse
Captain Bombshell
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 10
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    Sun Blushed          2    58.5    1    0.00     2.0   109   107          107   -2
2    Good Traveller       6    55.5    2    0.15     0.0   98    105          105   +7
3    Captain Bombshell    2    58.5    3    1.25     2.0   107   107          107   +0
4    Teflon Man           4    54.0    4    2.75     3.5   99    95           95    -4
5    Captain Casey        2    57.0    5    3.85     2.0   101   104          104   +3
6    Sovereign State      3    57.0    6    5.95     3.0   106   102          102   -4
7    African Skyline      6    57.0    7    6.55     0.0   101   108          108   +7
8    Addabar              3    55.0    8    7.15     3.0   97    98           98    +1
99   Thisiswhatitmeans    4    52.0    99   0.00     3.5   -     91           91    +0
99   Beechamwood Boy      6    54.5    99   0.00     0.0   -     103          103   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sun Blushed 109 120 107 +13 2.0 -
2 Good Traveller 98 108 105 +3 0.0 -
3 Captain Bombshell Line 107 106 107 -1 2.0
4 Teflon Man 99 106 95 +11 3.5 -
5 Captain Casey 101 96 104 -8 2.0 -
6 Sovereign State 106 96 102 -6 3.0 -
7 African Skyline 101 98 108 -10 0.0 -
8 Addabar 97 97 98 -1 3.0 -
99 Thisiswhatitmeans - 106 91 +15 3.5 -
99 Beechamwood Boy - 84 103 -19 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