Official NHA Assessment

Race 1: tabGOLD - THE INTELLIGENT BET! JUVENILE PLATE (For 2 year-olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
6 / 9
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    Winter Baron         2    57.0    1    0.00     0.5   -     -            -     +0
2    Rulership            2    60.0    2    3.50     0.5   -     -            -     +0
3    Last Survivor        2    57.0    3    6.50     0.5   -     -            -     +0
4    Variety Fair         2    54.5    4    8.10     0.5   -     -            -     +0
5    Kilbrannan Sound     2    57.0    5    9.70     0.5   -     -            -     +0
6    Tiger Spring         2    57.0    6    11.90    0.5   -     -            -     +0
99   Slim Jannie          2    57.0    99   0.00     0.5   -     -            -     +0
99   Franz Lehar          2    60.0    99   0.00     0.5   -     -            -     +0
99   Super Fast           5    57.0    99   0.00     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 Winter Baron - 81 - +81 0.5 -
2 Rulership - 118 - +118 0.5 -
3 Last Survivor - 64 - +64 0.5 -
4 Variety Fair - 63 - +63 0.5 -
5 Kilbrannan Sound - 67 - +67 0.5 -
6 Tiger Spring - 57 - +57 0.5 -
99 Slim Jannie - 95 - - 0.5 -
99 Franz Lehar - 83 - - 0.5 -
99 Super Fast - 83 - - 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