Official NHA Assessment

Race 5: MERIT RATED 80 HANDICAP (Open)

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Line Horse
Shesalegend
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
4 / 11
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    Differentiate        5    52.0    1    0.00     0.0   61    65           61    +0
2    Shesalegend          4    58.5    2    0.05     0.5   77    77           77    +0
3    Magic Mike           6    57.0    3    0.10     0.0   74    75           75    +1
4    Three To Tango       6    60.5    4    0.35     0.0   81    87           87    +6
5    Kursk (AUS)          6    55.0    5    1.85     0.0   70    74           74    +4
6    Karvani              7    55.5    6    2.10     0.0   71    75           75    +4
7    Tulip Way            5    60.0    7    2.60     0.0   80    83           83    +3
8    Viscountess Vivien   6    54.0    8    5.10     0.0   68    69           69    +1
9    Emerald Floe         4    61.0    9    11.10    0.5   82    82           82    +0
10   Pacific Duke         4    53.5    10   12.35    0.5   67    67           67    +0
99   Tradition            4    57.5    99   0.00     0.5   -     75           75    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Differentiate 61 72 61 +11 0.0 -
2 Shesalegend Line 77 74 77 -3 0.5
3 Magic Mike 74 67 75 -8 0.0 -
4 Three To Tango 81 87 87 ✓ Match 0.0 -
5 Kursk (AUS) 70 67 74 -7 0.0 -
6 Karvani 71 73 75 -2 0.0 -
7 Tulip Way 80 80 83 -3 0.0 -
8 Viscountess Vivien 68 72 69 +3 0.0 -
9 Emerald Floe 82 82 82 ✓ Match 0.5 -
10 Pacific Duke 67 49 67 -18 0.5 -
99 Tradition - 77 75 +2 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