Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION PINNACLE STAKES (Open)

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Line Horse
Origami
Reference for assessment
Exact Matches
1 / 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    Naval Guard          4    50.0    1    0.00     0.5   90    92           92    +2
2    Origami              4    52.0    2    1.75     0.5   99    99           99    +0
3    Youcanthurrylove     5    50.5    3    3.00     0.0   97    96           96    -1
4    Imperial Master      4    48.5    4    3.50     0.5   93    90           90    -3
5    Sovereign Spirit     6    58.0    5    4.75     0.0   114   109          109   -5
6    Bingwa               7    60.0    6    6.00     0.0   119   113          113   -6
7    Dr Doolittle         4    54.5    7    13.00    0.5   106   101          101   -5
99   Blue Moon City       4    50.0    99   0.00     0.5   -     92           92    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Naval Guard 90 93 92 +1 0.5 -
2 Origami Line 99 92 99 -7 0.5
3 Youcanthurrylove 97 86 96 -10 0.0 -
4 Imperial Master 93 90 90 ✓ Match 0.5 -
5 Sovereign Spirit 114 106 109 -3 0.0 -
6 Bingwa 119 107 113 -6 0.0 -
7 Dr Doolittle 106 103 101 +2 0.5 -
99 Blue Moon City - 75 92 -17 0.5 -
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