Official NHA Assessment

Race 1: CARLING BLACK LABEL NOVICE PLATE (Maidens & 1 time winners)

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Line Horse
Red Penny
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
3 / 6
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    Red Penny            2    60.0    1    0.00     0.0   85    85           85    +0
2    Festival Of Light    3    57.0    2    1.00     1.5   75    80           80    +5
3    Matilda Fitzwalter   2    55.0    3    2.50     0.0   -     77           77    +77
4    Coccolina            3    57.0    4    4.25     1.5   67    77           77    +10
5    Winchester           2    60.0    5    7.75     0.0   68    85           85    +17
6    Diamond Jim          3    58.0    6    9.50     1.5   76    78           78    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Red Penny Line 85 85 85 ✓ Match 0.0
2 Festival Of Light 75 75 80 -5 1.5 -
3 Matilda Fitzwalter - - 77 -77 0.0 -
4 Coccolina 67 67 77 -10 1.5 -
5 Winchester 68 68 85 -17 0.0 -
6 Diamond Jim 76 76 78 -2 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