Official NHA Assessment

Race 2: PLATINUM MERIT RATED 59 HANDICAP (F & M) (Open for Fillies & Mares)

Back to Race
Line Horse
New Galaxy
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
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Copper Fire          3    52.0    1    0.00     8.0   58    34           58    +0
2    New Galaxy           4    59.0    2    1.25     5.0   58    58           58    +0
3    Duchess Of War       2    60.0    3    4.50     0.0   59    66           66    +7
99   Trust Me             2    58.0    99   0.00     0.0   -     62           62    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Copper Fire 58 60 58 +2 8.0 -
2 New Galaxy Line 58 45 58 -13 5.0
3 Duchess Of War 59 55 66 -11 0.0 -
99 Trust Me - 51 62 -11 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