Official NHA Assessment

Race 8: 4RACING.TV MR 90 HANDICAP (Open)

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Line Horse
Variety Breeze
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
6 / 12
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    Ledell's Echo        2    55.5    1    0.00     1.5   84    78           84    +0
2    Light That Loose     4    58.5    2    3.25     0.0   87    87           87    +0
3    Variety Breeze       4    55.0    3    3.75     0.0   80    80           80    +0
4    Angel Deb's          3    55.5    4    5.25     2.5   81    76           76    -5
5    Forest Spy           2    55.0    5    6.50     1.5   83    77           77    -6
6    Rimaah               2    57.0    6    6.55     1.5   87    81           81    -6
7    Delicasea            4    54.5    7    7.80     0.0   79    79           79    +0
8    Princess Deb's       3    56.0    8    8.55     2.5   82    77           77    -5
9    Giacomo Puccini      4    57.0    9    8.80     0.0   84    84           84    +0
10   Paris Rix            3    59.5    10   9.55     2.5   89    84           84    -5
11   Spydas Corner        4    59.0    11   9.80     0.0   88    88           88    +0
99   Gallic Tribe         4    61.0    99   0.00     0.0   -     92           92    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ledell's Echo 84 88 84 +4 1.5 -
2 Light That Loose 87 86 87 -1 0.0 -
3 Variety Breeze Line 80 62 80 -18 0.0
4 Angel Deb's 81 78 76 +2 2.5 -
5 Forest Spy 83 85 77 +8 1.5 -
6 Rimaah 87 70 81 -11 1.5 -
7 Delicasea 79 74 79 -5 0.0 -
8 Princess Deb's 82 80 77 +3 2.5 -
9 Giacomo Puccini 84 72 84 -12 0.0 -
10 Paris Rix 89 81 84 -3 2.5 -
11 Spydas Corner 88 82 88 -6 0.0 -
99 Gallic Tribe - 101 92 +9 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