10 Essential Things to Know Before Running Your First Marathon

So, you're already lacing up regularly and wondering: Should I take on a marathon?‍

It’s a bold and exciting step, but before committing, it’s important to understand what marathon training really involves.

rom time commitments to potential physical and emotional hurdles, here are 10 key things you should consider before making that decision.

1. It Will Require Serious Commitment

Marathon training demands both time and money. You'll likely train 4 to 5 days a week, including one long run that can take hours.

Add in expenses like running shoes, gear, nutrition, race fees, and possible travel costs and it starts to add up.

Be realistic about your current responsibilities and how this commitment will fit into your life.

2. Start Small First

A marathon isn’t the best choice for a first-ever race. It's wise to complete a few shorter events like 5Ks, 10Ks, or even a half marathon before attempting the full 26.2 miles.

This helps your body adapt and gives you a feel for the training and race experience.

3. Walking Breaks Are Totally Fine

Worried you might have to walk during the race? That’s normal. Many marathoners walk at some point, especially at water stations or as part of a run/walk strategy.

The medal’s the same whether you run the whole thing or mix in some walking.

4. You Might Not Love Running Every Day

Even the most enthusiastic runners hit rough patches. Training for a marathon can be physically and mentally draining.

Expect moments where you’ll lose motivation and plan ways to get through them, like training with a group or switching up your routes.

5. Gear Up Right

Running long distances means your shoes and gear matter more than ever. Investing in the right shoes, breathable clothing, moisture-wicking socks, and a supportive sports bra (for women) is essential.

You may also need a hydration belt or handheld bottle for longer runs.

6. You Won’t Be Running the Full 26.2 in Training

A common misconception is that you need to run the full marathon distance before race day. Most training plans max out at 20 miles.

That’s enough to prepare your body and mind without overdoing it before the big day.

7. You’ll Be Training in All Kinds of Weather

You can’t count on perfect conditions on race day, so don’t only train on the treadmill.

Running outside, even in rain, heat, or cold, builds both resilience and experience.

That way, whatever the weather brings on race day, you’ll be ready.

8. Running a Marathon Doesn’t Guarantee Weight Loss

Training for a marathon doesn’t always lead to losing weight.

Increased hunger, larger meals, or the idea that you’ve "earned" extra calories can cancel out the calorie burn.

If weight loss is your goal, focus on mindful eating and track your intake alongside your training.

9. Be Prepared for Some Awkward Bathroom Breaks

Let’s be real: you’ll likely have to stop for a bathroom break, maybe in a porta-potty, a random gas station, or even behind a bush.

It’s a part of the marathon journey. Even seasoned runners deal with unexpected urges mid-run.

10. Not Everyone Will Understand

Not everyone in your life will be thrilled about your marathon plans. Some may worry about injuries, time away, or your well-being.

Explain why this goal matters to you and seek support from like-minded runners or local running groups when you need encouragement.