Official NHA Assessment

Race 3: GRADUATION PLATE (Maidens,1 & 2 time winners)

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Line Horse
Queen Of Fire
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
0 / 5
Within 2 points
Significant Diffs
4 / 5
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    Queen Of Fire        3    57.5    1    0.00     3.5   78    78           78    +0
2    Jet Green            4    60.0    2    1.75     4.0   61    82           82    +21
3    Gypsy Express        5    60.0    3    3.00     0.0   70    90           90    +20
4    Copper Fire          3    60.0    4    6.50     3.5   61    83           83    +22
5    Zafar                3    60.0    5    6.60     3.5   80    83           83    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Queen Of Fire Line 78 71 78 -7 3.5
2 Jet Green 61 54 82 -28 4.0 -
3 Gypsy Express 70 58 90 -32 0.0 -
4 Copper Fire 61 60 83 -23 3.5 -
5 Zafar 80 78 83 -5 3.5 -
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