Official NHA Assessment

Race 8: HKJC WORLD POOL PREMIER'S CHAMPIONS CHALLENGE (Grade 1) (For all horses at Weight for Age)

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Line Horse
Olivia's Way
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
5 / 11
Within 2 points
Significant Diffs
3 / 11
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    See It Again         2    60.0    1    0.00     0.0   130   123          123   -7
2    Okavango             3    60.0    2    0.60     3.5   123   123          123   +0
3    Olivia's Way         3    57.5    3    3.60     3.5   114   114          114   +0
4    Atticus Finch        5    60.0    4    5.50     0.0   127   123          123   -4
5    The Equator (IRE)    4    60.0    5    6.40     1.5   117   120          120   +3
6    The Ultimate King    3    60.0    6    10.30    3.5   117   116          116   -1
7    Fire Attack          3    60.0    7    15.10    3.5   124   116          116   -8
8    Madison Valley       4    60.0    8    23.30    1.5   116   120          120   +4
9    Royal Victory        5    60.0    9    99.99    0.0   124   123          123   -1
99   Grand Empire         3    56.5    99   0.00     3.5   -     109          109   +0
99   Trust                2    56.5    99   0.00     0.0   -     116          116   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 See It Again 130 130 123 +7 0.0 -
2 Okavango 123 125 123 +2 3.5 -
3 Olivia's Way Line 114 114 114 ✓ Match 3.5
4 Atticus Finch 127 127 123 +4 0.0 -
5 The Equator (IRE) 117 115 120 -5 1.5 -
6 The Ultimate King 117 117 116 +1 3.5 -
7 Fire Attack 124 124 116 +8 3.5 -
8 Madison Valley 116 116 120 -4 1.5 -
9 Royal Victory 124 124 123 +1 0.0 -
99 Grand Empire - 111 109 +2 3.5 -
99 Trust - 110 116 -6 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