Official NHA Assessment

Race 4: FOLLOW IN THE BOX SEAT PODCAST MR 67 HANDICAP (Open)

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Line Horse
What A Blast
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
3 / 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    Winter Waves         7    57.0    1    0.00     0.0   61    59           61    +0
2    Sonjador             5    56.0    2    0.70     0.0   62    62           62    +0
3    What A Blast         6    57.5    3    2.30     0.0   62    62           62    +0
4    Ciro                 4    53.5    4    3.20     2.0   59    50           50    -9
5    Flying Vision        4    56.5    5    3.25     2.0   60    56           56    -4
6    The Bayou            7    56.5    6    3.30     0.0   68    59           59    -9
7    Cool Runnings        4    59.0    7    4.20     2.0   65    60           60    -5
8    Star Crusade         5    58.0    8    5.60     0.0   63    61           61    -2
9    Mode                 4    57.0    9    6.30     2.0   61    55           55    -6
10   Rocky Coast          6    55.0    10   7.10     0.0   57    55           55    -2
99   Tom's Act            3    59.0    99   0.00     4.0   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Winter Waves 61 77 61 +16 0.0 -
2 Sonjador 62 51 62 -11 0.0 -
3 What A Blast Line 62 53 62 -9 0.0
4 Ciro 59 50 50 ✓ Match 2.0 -
5 Flying Vision 60 51 56 -5 2.0 -
6 The Bayou 68 58 59 -1 0.0 -
7 Cool Runnings 65 60 60 ✓ Match 2.0 -
8 Star Crusade 63 56 61 -5 0.0 -
9 Mode 61 49 55 -6 2.0 -
10 Rocky Coast 57 52 55 -3 0.0 -
99 Tom's Act - 64 55 +9 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