Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE ()

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Line Horse
Pacific
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
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    King Of Numbers      4    60.0    1    0.00     12.0  68    58           58    -10
2    One And All          2    58.0    2    0.75     7.0   70    64           64    -6
3    Pacific              4    60.0    3    4.75     12.0  58    58           58    +0
4    Summer Shade         4    60.0    4    5.75     12.0  57    58           58    +1
5    Yukon                4    60.0    5    5.80     12.0  -     58           58    +58
6    Dwight Eisenhower    2    58.0    6    9.75     7.0   -     64           64    +64
7    Mohave Man           2    60.0    7    10.50    7.0   62    68           68    +6
8    Destiny Fulfilled    2    58.0    8    23.50    7.0   -     64           64    +64
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 King Of Numbers 68 75 58 +17 12.0 -
2 One And All 70 87 64 +23 7.0 -
3 Pacific Line 58 50 58 -8 12.0
4 Summer Shade 57 52 58 -6 12.0 -
5 Yukon - 59 58 +1 12.0 -
6 Dwight Eisenhower - 80 64 +16 7.0 -
7 Mohave Man 62 60 68 -8 7.0 -
8 Destiny Fulfilled - 58 64 -6 7.0 -
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