Official NHA Assessment

Race 4: GALLOP TV FM 90 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Russian Doll
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
3 / 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    War Empress          5    54.0    1    0.00     0.0   78    82           78    +0
2    Pritti Victory       3    61.0    2    0.70     1.5   93    93           93    +0
3    Russian Doll         2    58.5    3    1.40     0.5   90    90           90    +0
4    There She Goes       6    57.5    4    2.50     0.0   85    89           89    +4
5    Pelargonium          3    58.0    5    4.00     1.5   86    87           87    +1
6    Mist In Scotland     2    60.5    6    8.20     0.5   92    94           94    +2
7    Witchwood            2    54.0    7    10.30    0.5   79    81           81    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 War Empress 78 92 78 +14 0.0 -
2 Pritti Victory 93 94 93 +1 1.5 -
3 Russian Doll Line 90 93 90 +3 0.5
4 There She Goes 85 77 89 -12 0.0 -
5 Pelargonium 86 84 87 -3 1.5 -
6 Mist In Scotland 92 77 94 -17 0.5 -
7 Witchwood 79 78 81 -3 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