Official NHA Assessment

Race 4: GALLOP FORM MIDDLE STAKES (F & M) (For Fillies and Mares with a Nett Rating of 102 & below)

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Line Horse
Perilla
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 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    One Smart Cookie     4    57.0    1    0.00     6.0   87    72           72    -15
2    Perilla              5    58.5    2    0.30     0.0   92    92           92    +0
3    Malcolm's Dream      6    57.0    3    0.90     0.0   88    88           88    +0
4    Celtic Beauty        4    61.5    4    1.10     6.0   100   85           90    -10
5    Sovereign Grant      4    61.5    5    2.00     6.0   101   84           91    -10
6    Magical View         3    60.0    6    2.10     8.5   96    76           86    -10
7    Acacia's Blossom     2    50.0    7    2.50     0.0   82    72           72    -10
8    Warrior Royale       3    60.0    8    2.90     8.5   96    75           86    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 One Smart Cookie 87 95 72 +23 6.0 -
2 Perilla Line 92 89 92 -3 0.0
3 Malcolm's Dream 88 88 88 ✓ Match 0.0 -
4 Celtic Beauty 100 96 90 +6 6.0 -
5 Sovereign Grant 101 92 91 +1 6.0 -
6 Magical View 96 88 86 +2 8.5 -
7 Acacia's Blossom 82 66 72 -6 0.0 -
8 Warrior Royale 96 101 86 +15 8.5 -
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