Official NHA Assessment

Race 6: NADIA FARINA SILVER SLIPPER (Listed) (For all 3 yr old Fillies/ 2nd Leg Triple Tiara)

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Line Horse
Tigers Eagle
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
3 / 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    Call The Wind        3    58.0    1    0.00     4.5   77    66           66    -11
2    Tigers Eagle         3    58.0    2    3.50     4.5   67    67           67    +0
3    Midfield Girl        3    58.0    3    13.50    4.5   64    66           66    +2
4    Ian's Ferrari        3    58.0    4    25.50    4.5   60    66           66    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Call The Wind 77 56 66 -10 4.5 -
2 Tigers Eagle Line 67 79 67 +12 4.5
3 Midfield Girl 64 59 66 -7 4.5 -
4 Ian's Ferrari 60 63 66 -3 4.5 -
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