Official NHA Assessment

Race 4: JOHN MCMURTRY, MARK NEL, SIMON RAHILLY MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Destiny's Dream
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
3 / 10
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    Drachenfutter        2    57.0    1    0.00     2.0   -     71           6     +6
2    Destiny's Dream      2    60.0    2    0.20     2.0   77    77           77    +0
3    Secret Life          2    57.0    3    3.45     2.0   -     71           71    +71
4    Ruby Whisper         2    57.0    4    3.75     2.0   -     71           71    +71
5    Global Royalty       2    60.0    5    4.35     2.0   48    77           77    +29
6    Spring Tide          2    57.0    6    4.60     2.0   -     71           71    +71
7    Erik's Girl          2    57.5    7    4.85     2.0   67    72           72    +5
8    Hawker Tempest       2    57.0    8    99.99    2.0   -     71           71    +71
99   Gathering Winter     2    60.0    99   0.00     2.0   -     77           77    +0
99   Lady William         3    57.5    99   0.00     3.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Drachenfutter - - 6 - 2.0 -
2 Destiny's Dream Line 77 77 77 ✓ Match 2.0
3 Secret Life - - 71 - 2.0 -
4 Ruby Whisper - - 71 - 2.0 -
5 Global Royalty 48 48 77 -29 2.0 -
6 Spring Tide - - 71 - 2.0 -
7 Erik's Girl 67 67 72 -5 2.0 -
8 Hawker Tempest - - 71 - 2.0 -
99 Gathering Winter - 68 77 -9 2.0 -
99 Lady William - 59 70 -11 3.0 -
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