The conclusion threw me off a bit because of where it was stated. Almost did not sound like an argument but I can finally see it.

Premise: People need to prepare for marathons

Premise: Jake is doing 3 miles a day to prepare for his marathon at the end of the month.

Major Premise: Jake is always preparing for these marathons.

Premise: Marathon runners always know how to run a long distance

Conclusion: Jake has been running long distance for 20 years; he is a professional at it.