Official NHA Assessment

Race 5: DE GRENDEL WINE ESTATE MAIDEN SPECIAL WEIGHTS (F & M) (For all Maiden Fillies & Mares)

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Line Horse
Demelza
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
5 / 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    Demelza              3    60.0    1    0.00     2.0   74    74           74    +0
2    Absolute Pleasure    2    57.0    2    3.25     1.0   -     70           70    +70
3    Dracma               3    60.0    3    6.25     2.0   -     74           74    +74
4    Time Flies           3    60.0    4    6.45     2.0   -     74           74    +74
5    Ripassa              2    57.0    5    8.20     1.0   -     70           70    +70
99   Turkish Kelim        2    57.0    99   0.00     1.0   -     70           70    +0
99   Russian Taiga        2    57.0    99   0.00     1.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Demelza Line 74 66 74 -8 2.0
2 Absolute Pleasure - 69 70 -1 1.0 -
3 Dracma - 43 74 -31 2.0 -
4 Time Flies - 117 74 +43 2.0 -
5 Ripassa - - 70 -70 1.0 -
99 Turkish Kelim - 69 70 -1 1.0 -
99 Russian Taiga - 32 70 -38 1.0 -
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