Official NHA Assessment

Race 5: INDEPENDENT ON SATURDAY DRILL HALL STAKES (Grade 2) (Horses at Weight-For-Age + Penalties)

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Line Horse
Questioning
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
3 / 9
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    Questioning          2    58.5    1    0.00     0.0   127   127          127   +0
2    Gladatorian          5    60.0    2    1.60     0.0   127   133          133   +6
3    Great Plains         3    57.0    3    1.70     1.5   122   124          124   +2
4    Legal Counsel        3    57.0    4    1.95     1.5   128   124          124   -4
5    Cats Pajamas         3    58.5    5    2.15     1.5   119   127          127   +8
6    The Real Prince      3    60.0    6    2.25     1.5   128   130          130   +2
7    Jet Force            3    57.0    7    3.35     1.5   117   122          122   +5
8    Roland Garros        2    55.0    8    3.95     0.0   112   121          121   +9
9    Outlaw King          2    58.5    9    6.05     0.0   123   127          127   +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Questioning Line 127 127 127 ✓ Match 0.0
2 Gladatorian 127 127 133 -6 0.0 -
3 Great Plains 122 122 124 -2 1.5 -
4 Legal Counsel 128 128 124 +4 1.5 -
5 Cats Pajamas 119 119 127 -8 1.5 -
6 The Real Prince 128 128 130 -2 1.5 -
7 Jet Force 117 117 122 -5 1.5 -
8 Roland Garros 112 112 121 -9 0.0 -
9 Outlaw King 123 123 127 -4 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