Official NHA Assessment

Race 4: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win CRS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
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    Copper Eagle         2    60.0    1    0.00     0.0   -     -            -     +0
2    Sergeant Soqrat      2    58.5    2    2.10     0.0   -     -            -     +0
3    Golden Operator      2    60.0    3    2.50     0.0   -     -            -     +0
4    Tommy Shelby         2    60.0    4    3.00     0.0   -     -            -     +0
5    Winchester           2    60.0    5    3.40     0.0   -     -            -     +0
6    On An Impulse        2    60.0    6    5.15     0.0   -     -            -     +0
7    Trip To Peace        2    60.0    7    12.25    0.0   -     -            -     +0
8    Salt Lake City       2    57.0    8    20.50    0.0   -     -            -     +0
9    In The Willows       2    60.0    9    31.00    0.0   -     -            -     +0
10   Captain Carnage      2    60.0    10   39.25    0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Copper Eagle - 100 - +100 0.0 -
2 Sergeant Soqrat - 71 - +71 0.0 -
3 Golden Operator - 87 - +87 0.0 -
4 Tommy Shelby - 101 - +101 0.0 -
5 Winchester - 69 - +69 0.0 -
6 On An Impulse - 79 - +79 0.0 -
7 Trip To Peace - 77 - +77 0.0 -
8 Salt Lake City - 82 - +82 0.0 -
9 In The Willows - 54 - +54 0.0 -
10 Captain Carnage - 59 - +59 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