Official NHA Assessment

Race 6: 4RACING.TV MR 82 HANDICAP (Open)

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Line Horse
Ledell's Echo
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
5 / 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    Al Qaasim            4    62.0    1    0.00     4.0   86    88           86    +0
2    Ledell's Echo        2    58.5    2    1.25     2.5   84    84           84    +0
3    European Summer      3    59.5    3    1.50     3.5   81    84           84    +3
4    Notorix              6    56.0    4    2.75     0.0   74    84           84    +10
5    Baubles And Beads    2    54.5    5    4.00     2.5   76    76           76    +0
6    Forest Spy           2    61.0    6    4.75     2.5   89    89           89    +0
7    Vegas Gold           3    57.5    7    4.85     3.5   77    80           80    +3
8    Brass Bell           8    57.0    8    7.60     0.0   76    86           86    +10
9    Delicasea            4    58.5    9    8.10     4.0   79    81           81    +2
10   Princess Deb's       3    60.5    10   9.60     3.5   83    86           86    +3
99   Light That Loose     4    62.5    99   0.00     4.0   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Al Qaasim 86 91 86 +5 4.0 -
2 Ledell's Echo Line 84 88 84 +4 2.5
3 European Summer 81 77 84 -7 3.5 -
4 Notorix 74 68 84 -16 0.0 -
5 Baubles And Beads 76 72 76 -4 2.5 -
6 Forest Spy 89 85 89 -4 2.5 -
7 Vegas Gold 77 83 80 +3 3.5 -
8 Brass Bell 76 55 86 -31 0.0 -
9 Delicasea 79 74 81 -7 4.0 -
10 Princess Deb's 83 80 86 -6 3.5 -
99 Light That Loose - 86 89 -3 4.0 -
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