Official NHA Assessment

Race 3: MERIT RATED 64 HANDICAP (Open)

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Line Horse
Shesalegend
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
3 / 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    Peaceable            4    60.0    1    0.00     3.0   65    61           65    +0
2    Differentiate        5    58.0    2    1.00     0.0   60    67           67    +7
3    Shesalegend          4    60.0    3    1.25     3.0   65    65           65    +0
4    Kursk (AUS)          6    59.5    4    1.50     0.0   63    69           69    +6
5    Days Gone By         3    48.0    5    2.25     6.0   57    34           47    -10
6    Obscure              4    59.5    6    2.35     3.0   64    62           62    -2
7    Cool Solution        9    60.0    7    2.60     0.0   64    69           69    +5
8    Centre Stage         5    54.0    8    12.60    0.0   51    55           55    +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Peaceable 65 65 65 ✓ Match 3.0 -
2 Differentiate 60 72 67 +5 0.0 -
3 Shesalegend Line 65 74 65 +9 3.0
4 Kursk (AUS) 63 67 69 -2 0.0 -
5 Days Gone By 57 51 47 +4 6.0 -
6 Obscure 64 87 62 +25 3.0 -
7 Cool Solution 64 51 69 -18 0.0 -
8 Centre Stage 51 52 55 -3 0.0 -
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