In a perfect world, we’d train hard, race smart, recover well, and live a balanced, healthy life. In reality, we fall prey to the same errors over and over. Among them:

1. Going out too fast.
We’re flying! We’re flying! We’re…crashing and burning.

2. Forgetting the BodyGlide.
Innocent bystanders hear the screams when hot shower water hits raw, chafed skin.

3. Overdressing for a long run.
We obsess about the “real-feel” temperature for hours and still end up with three jackets around the waist halfway through a run.

4. Not warming up.
Going straight from commute or desk chair to mile repeats seemed like a good idea. Our legs had different thoughts.

5. Skipping the stretching and foam-rolling afterward.
Then: “I don’t have time before Walking Dead.” The next day: Moves like a zombie from Walking Dead.

6. That new burrito joint the night before an important workout.
I thought there was a porta-potty around this next corner? Or was it back there?

7. Forgetting sunscreen in the first race of spring.
Burn, baby, burn.

preview for 12 Mistakes Runners Can't Stop Making

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8. Going out too fast…again.
Hitting the wall once just wasn’t enough.

9. Using negative self-talk.
Who needs a mean coach when you can call yourself slow, fat, and stupid?

10. Running too hard on easy days.
If it’s not hurting, you’re not doing it right. Right?

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11. Cramming for a race.
Oh, it’s July?  (Looks at calendar.) Marathon’s in September? Sure, that 16-week training plan can squeeze into 8 weeks.

12. Not charging our phone or GPS watch.
Nothing conveys energy like a blank screen.

13. Pushing through an injury.
I’ll just get this one more run in and then I’ll take some extra days off.

14. Overtraining.
If it’s not hurting, you’re not doing it right. Right? Right?

15. Ignoring the core.
Planks. Who needs ’em?

16. Skipping strength training altogether.
I’m a runner. I run. I don’t want to look like Arnold.

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17. Forgetting a post-run snack.
The runger is real.

18. Followed by…bingeing later in the day.
Why am I gaining weight during marathon training?

19. Going out too fast in an interval workout.
Don’t mind us, we’re still working on our pacing…

20. Running too much, too soon.
If it’s not hurting, you’re not doing it right. Right? Right? Right?

21. Making up missed miles on the weekend.
Sure, if I do 10 on Saturday and 12 on Sunday, I can still get to 25 for the week in my training log.

worn out shoes
OlafSpeier

22. Trying those new shoes/shorts/hat/socks on race day.
Forgot to do laundry, so here, do me a favor and rip the tags off of these for me quick…

23. Spending hours at the race expo.
Energy gel samples. Beer samples. Coffee samples. What could possibly go wrong?

24. Skipping rest days.
Rest is for wimps.

25. Wearing our shoes into the ground.
Really, they’re fine. They still look good!

26. Doubting ourselves.
I suddenly have absolutely no memory of the training I did to get here. And therefore, I’m slow, fat, and stupid.

27. Not taking water on the trail.
You mean “stay thirsty” was not meant to be taken literally?

28. Not practicing our fueling strategy.
Eh, guess I’ll take a gel or two somewhere between miles 5 and 20, no biggie.

29. Doing group workouts on recovery days.
Do stair climbing and burpee competitions qualify as a break from the stress of running?

30. Always heading out along the same route.
Last week I was at 22:38 at this light post and today I’m only at 22:47. Better pick it up.

31. Comparing ourselves to other runners.
My only competition is myself. Oh, and the 5,000 people I follow on Strava.

32. Buying too-small shoes.
Toenails are optional, right?

33. Poorly timing our prerace bathroom breaks.
“Runners, you have three minutes. Please make your way over to the corrals.”

34. Being a slave to our training plan.
Just because I was up with a vomiting kid all night doesn’t mean I can’t do my miles. Right?

35. Not sleeping enough.
Five hours is only two hours less than seven, which isn’t too bad.

36. Going out too fast in a long run.
Why limit the pain of bonking to race day?

37. Going out too fast in a race.
After all, it’s what we practiced!

Headshot of Cindy Kuzma
Cindy Kuzma
Contributing Writer

Cindy is a freelance health and fitness writer, author, and podcaster who’s contributed regularly to Runner’s World since 2013. She’s the coauthor of both Breakthrough Women’s Running: Dream Big and Train Smart and Rebound: Train Your Mind to Bounce Back Stronger from Sports Injuries, a book about the psychology of sports injury from Bloomsbury Sport. Cindy specializes in covering injury prevention and recovery, everyday athletes accomplishing extraordinary things, and the active community in her beloved Chicago, where winter forges deep bonds between those brave enough to train through it.