Official NHA Assessment

Race 2: ALL TO COME PROGRESS PLATE (1,2 & 3 time winners & Maidens)

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Line Horse
Invidia
Reference for assessment
Exact Matches
2 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
4 / 7
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    Bartholdi            4    61.0    1    0.00     6.0   104   92           70    -34
2    Invidia              5    61.0    2    1.25     0.0   104   104          104   +0
3    Mufasa               6    58.0    3    1.75     0.0   98    98           98    +0
4    Gallic Chief         3    58.0    4    5.25     5.0   97    88           88    -9
5    Captain Morisco      4    61.0    5    10.50    6.0   92    92           92    +0
99   Volluto              3    55.0    99   0.00     5.0   -     82           82    +0
99   Heavens Girl         3    55.5    99   0.00     5.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bartholdi 104 117 70 +47 6.0 -
2 Invidia Line 104 105 104 +1 0.0
3 Mufasa 98 98 98 ✓ Match 0.0 -
4 Gallic Chief 97 98 88 +10 5.0 -
5 Captain Morisco 92 92 92 ✓ Match 6.0 -
99 Volluto - 71 82 -11 5.0 -
99 Heavens Girl - 111 83 +28 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