Official NHA Assessment

Race 6: CARLING BLACK LABEL MERIT RATED 95 HANDICAP (Open)

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Line Horse
Varnica
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
3 / 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    Mind Master          4    55.5    1    0.00     0.0   80    83           80    +0
2    Brianna              4    56.5    2    0.25     0.0   85    85           85    +0
3    Varnica              5    60.0    3    2.25     0.0   92    92           92    +0
4    Emerald Floe         4    59.5    4    2.30     0.0   91    91           91    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mind Master 80 87 80 +7 0.0 -
2 Brianna 85 103 85 +18 0.0 -
3 Varnica Line 92 90 92 -2 0.0
4 Emerald Floe 91 82 91 -9 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