Official NHA Assessment

Race 7: PinkDrive MICHAELMAS HANDICAP (Handicap - Non-Black Type)

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Line Horse
Natyam
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 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    Madison Valley       4    59.5    1    0.00     5.0   108   90           108   +0
2    Cape Eagle           7    61.5    2    0.25     0.0   110   104          104   -6
3    Natyam               5    55.0    3    1.05     0.0   97    97           97    +0
4    Officer In Command   4    52.0    4    2.05     5.0   90    80           80    -10
99   Mexican Pete         3    53.5    99   0.00     9.0   -     70           70    +0
99   Trois Trois Quatre   5    52.0    99   0.00     0.0   -     85           85    +0
99   Golden Peace         2    53.0    99   0.00     0.0   -     87           87    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Madison Valley 108 116 108 +8 5.0 -
2 Cape Eagle 110 106 104 +2 0.0 -
3 Natyam Line 97 102 97 +5 0.0
4 Officer In Command 90 86 80 +6 5.0 -
99 Mexican Pete - 84 70 +14 9.0 -
99 Trois Trois Quatre - 87 85 +2 0.0 -
99 Golden Peace - 105 87 +18 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