Official NHA Assessment

Race 3: EQUIANO MERIT RATED 85 HANDICAP (Open)

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Line Horse
Karvani
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 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    Master Tik Tok       5    53.0    1    0.00     0.0   71    68           71    +0
2    Karvani              7    55.0    2    2.00     0.0   75    75           75    +0
3    Empire Blue          4    57.5    3    4.50     2.0   80    73           73    -7
4    Power Ranger         7    60.0    4    6.50     0.0   85    82           82    -3
5    Nandine              3    54.0    5    11.50    4.0   73    62           63    -10
6    Ian's Ferrari        3    57.0    6    13.50    4.0   79    68           69    -10
99   Raining Again        6    58.0    99   0.00     0.0   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Master Tik Tok 71 80 71 +9 0.0 -
2 Karvani Line 75 73 75 -2 0.0
3 Empire Blue 80 71 73 -2 2.0 -
4 Power Ranger 85 69 82 -13 0.0 -
5 Nandine 73 60 63 -3 4.0 -
6 Ian's Ferrari 79 63 69 -6 4.0 -
99 Raining Again - 73 78 -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