Official NHA Assessment

Race 7: BYERLEY TURK (Grade 3) (For 3 year olds)

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Line Horse
Captain Casey
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 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    Strawberry Bear      2    54.0    1    0.00     0.0   99    100          100   +1
2    Cousin Casey         2    60.0    2    0.60     0.0   122   117          117   -5
3    Jimmy Don            2    54.0    3    0.65     0.0   116   105          106   -10
4    Captain Casey        2    54.0    4    1.55     0.0   103   103          103   +0
5    Kitchakal            5    54.0    5    3.45     0.0   90    101          101   +11
6    Gold Index           3    54.0    6    4.85     2.0   78    96           96    +18
7    Imposing             2    54.0    7    5.15     0.0   100   100          100   +0
8    Aerial Display       5    54.5    8    7.55     0.0   82    101          101   +19
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Strawberry Bear 99 106 100 +6 0.0 -
2 Cousin Casey 122 125 117 +8 0.0 -
3 Jimmy Don 116 112 106 +6 0.0 -
4 Captain Casey Line 103 96 103 -7 0.0
5 Kitchakal 90 86 101 -15 0.0 -
6 Gold Index 78 53 96 -43 2.0 -
7 Imposing 100 107 100 +7 0.0 -
8 Aerial Display 82 68 101 -33 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