Official NHA Assessment

Race 3: RACE COAST MIDDLE STAKES (F & M) (For Fillies and Mares with a Nett Rating of 102 & below)

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Line Horse
Miss Ladyaterix
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
2 / 7
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    Russian Doll         2    57.0    1    0.00     0.5   90    91           91    +1
2    Captain's Christy    4    58.5    2    0.70     2.0   92    91           91    -1
3    Miss Ladyaterix      3    57.0    3    1.10     1.5   89    89           89    +0
4    Convocation          5    58.5    4    1.50     0.0   92    95           95    +3
5    Ride On              2    57.0    5    21.30    0.5   87    91           91    +4
99   Blue Holly           4    51.5    99   0.00     2.0   -     77           77    +0
99   Sohot Sowhat         3    61.5    99   0.00     1.5   -     98           98    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Russian Doll 90 93 91 +2 0.5 -
2 Captain's Christy 92 95 91 +4 2.0 -
3 Miss Ladyaterix Line 89 92 89 +3 1.5
4 Convocation 92 94 95 -1 0.0 -
5 Ride On 87 87 91 -4 0.5 -
99 Blue Holly - 85 77 +8 2.0 -
99 Sohot Sowhat - 92 98 -6 1.5 -
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