Official NHA Assessment

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Line Horse
Art Nouveau
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 10
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    Lapis Lazuli         3    60.0    1    0.00     2.5   70    70           70    +0
2    Art Nouveau          3    60.0    2    3.25     2.5   72    72           72    +0
3    Winds Of Grace       3    60.0    3    6.00     2.5   74    70           70    -4
4    Cape Saffron         3    60.0    4    6.80     2.5   72    70           70    -2
5    Wearingofthegreen (  4    60.0    5    10.10    1.5   65    72           72    +7
6    Amber Eyes           3    56.0    6    11.50    2.5   54    62           62    +8
7    Summer Winter        3    60.0    7    17.00    2.5   74    70           70    -4
8    Denim Blue           3    60.0    8    19.25    2.5   -     70           70    +70
9    La Chance            4    60.0    9    19.75    1.5   54    72           72    +18
10   Mrs Wonderful        3    56.0    10   99.99    2.5   -     62           62    +62
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lapis Lazuli 70 59 70 -11 2.5 -
2 Art Nouveau Line 72 80 72 +8 2.5
3 Winds Of Grace 74 72 70 +2 2.5 -
4 Cape Saffron 72 82 70 +12 2.5 -
5 Wearingofthegreen (IRE) 65 61 72 -11 1.5 -
6 Amber Eyes 54 50 62 -12 2.5 -
7 Summer Winter 74 78 70 +8 2.5 -
8 Denim Blue - 52 70 -18 2.5 -
9 La Chance 54 54 72 -18 1.5 -
10 Mrs Wonderful - 20 62 -42 2.5 -
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