Official NHA Assessment

Race 5: SUPERIOR PLATE (Open)

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Line Horse
Admirals Chance
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
2 / 4
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    Master Tik Tok       5    53.0    1    0.00     0.0   81    83           83    +2
2    Admirals Chance      5    55.5    2    5.00     0.0   88    88           88    +0
3    Hildelita            4    50.5    3    15.00    1.5   89    75           79    -10
4    Jubilee              7    60.0    4    15.05    0.0   84    97           97    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Master Tik Tok 81 80 83 -3 0.0 -
2 Admirals Chance Line 88 77 88 -11 0.0
3 Hildelita 89 76 79 -3 1.5 -
4 Jubilee 84 72 97 -25 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