Official NHA Assessment

Race 7: MERIT RATED 81 HANDICAP (Open)

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Line Horse
Obscure
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
3 / 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    Citrusdal            8    60.0    1    0.00     0.0   81    77           81    +0
2    Shesalegend          4    58.0    2    0.50     0.5   77    79           79    +2
3    Obscure              4    59.5    3    2.25     0.5   80    80           80    +0
4    Magic Mike           6    56.5    4    3.00     0.0   74    73           73    -1
5    Tulip Way            5    58.0    5    3.75     0.0   77    75           75    -2
6    Tigers Eagle         3    57.0    6    5.25     1.5   78    68           68    -10
7    Karvani              7    55.5    7    8.25     0.0   71    68           68    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Citrusdal 81 81 81 ✓ Match 0.0 -
2 Shesalegend 77 74 79 -5 0.5 -
3 Obscure Line 80 87 80 +7 0.5
4 Magic Mike 74 67 73 -6 0.0 -
5 Tulip Way 77 80 75 +5 0.0 -
6 Tigers Eagle 78 79 68 +11 1.5 -
7 Karvani 71 73 68 +5 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