Official NHA Assessment

Race 1: COMPLIMENTS OF THE NEW YEAR MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Sovereign Gem
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
6 / 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    Captain Ventura      3    60.0    1    0.00     5.0   76    74           74    -2
2    Winter Blessing      2    58.5    2    1.30     3.5   75    74           74    -1
3    Sovereign Gem        3    60.0    3    1.35     5.0   74    74           74    +0
4    Winter Belle         2    60.0    4    2.40     3.5   70    77           77    +7
5    Sargasso Sea         3    60.0    5    7.40     5.0   -     74           74    +74
6    Sol E Sombra         3    60.0    6    12.30    5.0   -     74           74    +74
7    Exaggerate           3    60.0    7    18.80    5.0   -     74           74    +74
99   Lovecomesknocking    3    60.0    99   0.00     5.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Ventura 76 80 74 +6 5.0 -
2 Winter Blessing 75 73 74 -1 3.5 -
3 Sovereign Gem Line 74 75 74 +1 5.0
4 Winter Belle 70 70 77 -7 3.5 -
5 Sargasso Sea - 66 74 -8 5.0 -
6 Sol E Sombra - 58 74 -16 5.0 -
7 Exaggerate - - 74 -74 5.0 -
99 Lovecomesknocking - 64 74 -10 5.0 -
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