Official NHA Assessment

Race 5: #destinationcaperacing CLASS 2 (Open. Benchmark at 60.0kg = 110)

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Line Horse
Piroshka
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 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    Jerusalema Rain      2    54.0    1    0.00     3.0   102   90           90    -12
2    Dance Variety        2    56.5    2    0.20     3.0   101   95           95    -6
3    Piroshka             5    52.5    3    0.60     0.0   93    93           93    +0
4    Countdown            2    60.0    4    1.85     3.0   108   102          102   -6
5    Charlie Croker       2    53.0    5    2.25     3.0   94    88           88    -6
6    Yellowporscheroad    2    54.5    6    4.00     3.0   97    91           91    -6
7    My Golly Molly       4    53.0    7    5.50     5.0   100   84           90    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jerusalema Rain 102 100 90 +10 3.0 -
2 Dance Variety 101 114 95 +19 3.0 -
3 Piroshka Line 93 72 93 -21 0.0
4 Countdown 108 106 102 +4 3.0 -
5 Charlie Croker 94 82 88 -6 3.0 -
6 Yellowporscheroad 97 97 91 +6 3.0 -
7 My Golly Molly 100 71 90 -19 5.0 -
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