Official NHA Assessment

Race 2: MERIT RATED 65 HANDICAP (Open)

Back to Race
Line Horse
Copper Fire
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
5 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Prince Of Denmark    4    57.5    1    0.00     0.5   60    64           60    +0
2    Copper Fire          3    57.5    2    1.75     2.0   64    64           64    +0
3    Bruce's Spirit       6    60.5    3    2.25     0.0   66    74           74    +8
4    New Galaxy           4    56.5    4    2.75     0.5   58    64           64    +6
5    Pair Of Aces         4    52.5    5    7.75     0.5   50    54           54    +4
6    Jet Green            4    58.0    6    9.50     0.5   61    65           65    +4
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prince Of Denmark 60 51 60 -9 0.5 -
2 Copper Fire Line 64 60 64 -4 2.0
3 Bruce's Spirit 66 55 74 -19 0.0 -
4 New Galaxy 58 45 64 -19 0.5 -
5 Pair Of Aces 50 39 54 -15 0.5 -
6 Jet Green 61 54 65 -11 0.5 -
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