Official NHA Assessment

Race 4: FOLLOW IN THE BOX SEAT PODCAST D STAKES (For All Horses with a nett rating of 69 & below)

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Line Horse
Whereverilaymyhat
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 8
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    Prankster            2    59.0    1    0.00     1.0   62    62           62    +0
2    Whereverilaymyhat    4    58.5    2    3.00     2.5   58    58           58    +0
3    Purple Powahouse     8    56.0    3    5.80     0.0   61    58           58    -3
4    Ndaka                3    60.0    4    5.95     2.0   68    62           62    -6
5    Happy Wanderer       5    58.5    5    7.25     0.0   57    63           63    +6
6    Ultra Quick          6    60.0    6    8.05     0.0   68    66           66    -2
99   Fate Of Fortune      3    60.0    99   0.00     2.0   -     62           62    +0
99   Arverni Princess     2    57.5    99   0.00     1.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Prankster 62 69 62 +7 1.0 -
2 Whereverilaymyhat Line 58 68 58 +10 2.5
3 Purple Powahouse 61 55 58 -3 0.0 -
4 Ndaka 68 61 62 -1 2.0 -
5 Happy Wanderer 57 55 63 -8 0.0 -
6 Ultra Quick 68 71 66 +5 0.0 -
99 Fate Of Fortune - 77 62 +15 2.0 -
99 Arverni Princess - 67 59 +8 1.0 -
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