Official NHA Assessment

Race 6: CLASSIFIED STAKES (81) (For horses with nett rating of 81 and below)

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Line Horse
Tulip Way
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
1 / 6
Within 2 points
Significant Diffs
3 / 6
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    Tulip Way            5    55.0    1    0.00     0.0   77    77           77    +0
2    Karvani              7    48.0    2    0.50     0.0   65    68           68    +3
3    Tradition            4    58.0    3    2.50     1.0   76    83           83    +7
4    Mind Master          4    60.0    4    3.25     1.0   80    87           87    +7
5    At The Office        6    51.5    5    3.30     0.0   69    71           71    +2
6    Obscure              4    53.0    6    9.30     1.0   72    71           71    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tulip Way Line 77 80 77 +3 0.0
2 Karvani 65 73 68 +5 0.0 -
3 Tradition 76 77 83 -6 1.0 -
4 Mind Master 80 87 87 ✓ Match 1.0 -
5 At The Office 69 45 71 -26 0.0 -
6 Obscure 72 87 71 +16 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