Official NHA Assessment

Race 7: Hollywoodbets CAPE GUINEAS (Grade 1) (For 3 year-old horses)

Line Horse
One Stripe
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
4 / 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    One Stripe           3    60.0    1    0.00     6.0   118   118          118   +0
2    Eight On Eighteen    2    60.0    2    1.25     0.0   110   134          134   +24
3    Great Plains         3    60.0    3    2.75     6.0   110   120          120   +10
4    O'Tenikwa            3    60.0    4    5.00     6.0   97    118          118   +21
5    Heather's Boy        3    60.0    5    8.25     6.0   102   118          118   +16
6    All Out For Six      3    60.0    6    8.45     6.0   112   118          118   +6
7    On My Honour         3    60.0    7    14.45    6.0   108   118          118   +10
8    Boundless Energy     2    60.0    8    17.20    0.0   109   130          130   +21
9    Sail The Seas        2    60.0    9    17.95    0.0   97    130          130   +33
10   Bjorn Ironside       2    60.0    10   18.45    0.0   110   130          130   +20
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 One Stripe Line 118 132 118 +14 6.0
2 Eight On Eighteen 110 129 134 -5 0.0 -
3 Great Plains 110 122 120 +2 6.0 -
4 O'Tenikwa 97 121 118 +3 6.0 -
5 Heather's Boy 102 102 118 -16 6.0 -
6 All Out For Six 112 117 118 -1 6.0 -
7 On My Honour 108 116 118 -2 6.0 -
8 Boundless Energy 109 106 130 -24 0.0 -
9 Sail The Seas 97 127 130 -3 0.0 -
10 Bjorn Ironside 110 105 130 -25 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