Official NHA Assessment

Race 3: EDWARD THE SEVENTH MERIT RATED 65 HANDICAP (Open)

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Line Horse
Jet Green
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
2 / 4
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    When Evening Comes   5    56.0    1    0.00     0.0   57    62           57    +0
2    Jet Green            4    56.0    2    0.25     2.5   57    57           57    +0
3    Gypsy Express        5    60.0    3    5.25     0.0   65    70           70    +5
99   Trustfall            3    52.5    99   0.00     5.0   -     45           45    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 When Evening Comes 57 58 57 +1 0.0 -
2 Jet Green Line 57 54 57 -3 2.5
3 Gypsy Express 65 58 70 -12 0.0 -
99 Trustfall - 62 45 +17 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