Official NHA Assessment

Race 1: WELCOME TO CAPE RACING WORK RIDERS' MAIDEN PLATE (F & M) (For Maiden F&M)

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Line Horse
Jury Duty
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
4 / 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    Jury Duty            4    62.0    1    0.00     0.0   62    62           62    +0
2    Dracma               3    62.0    2    8.25     2.5   -     57           57    +57
3    Jewlray              3    62.0    3    8.75     2.5   -     57           57    +57
4    Russian Taiga        2    59.0    4    18.00    1.5   -     53           53    +53
5    Microburst           3    62.0    5    18.05    2.5   65    57           57    -8
6    Future Contract      3    62.0    6    23.55    2.5   -     57           57    +57
99   Dream Spinner        2    59.0    99   0.00     1.5   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jury Duty Line 62 77 62 +15 0.0
2 Dracma - 43 57 -14 2.5 -
3 Jewlray - 53 57 -4 2.5 -
4 Russian Taiga - 32 53 -21 1.5 -
5 Microburst 65 60 57 +3 2.5 -
6 Future Contract - 40 57 -17 2.5 -
99 Dream Spinner - 49 53 -4 1.5 -
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