Official NHA Assessment

Race 1: GRADUATION PLATE (Maidens,1 & 2 time winners)

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Line Horse
Cosmic Event
Reference for assessment
Exact Matches
1 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
1 / 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    Solartrip            3    60.0    1    0.00     1.0   71    78           77    +6
2    Shes Everything      3    57.0    2    2.50     1.0   81    74           74    -7
3    Cosmic Event         5    60.0    3    2.75     0.0   82    82           82    +0
4    Burn Bright          3    57.0    4    6.75     1.0   59    72           72    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Solartrip 71 77 77 ✓ Match 1.0 -
2 Shes Everything 81 71 74 -3 1.0 -
3 Cosmic Event Line 82 70 82 -12 0.0
4 Burn Bright 59 68 72 -4 1.0 -
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