Who knows where you ran last week?

If youre privacy-minded, perhaps just you…and your running app.

But our fitness apps often share more information than we realize.

The Strava app, andnow Polar Flow, have released maps that gave away potentially sensitive military locations.

Its not just militaries that should be worried.

A lot of uswomen in particularare wary of letting the world know where we live.

(If you write things on the internet that sometimes make people mad, you may beespeciallywary.)

Consider using a profile pic that doesnt show your face.

Dont track runs that start from your house.

Keep your runs private by default.

(Keep in mind that theres a timestamp whenever you share a post to social media, too.)

Those guidelines may not work for everyone, because information only exists when we share it.

Maybe you do all your running in your neighborhood, and want to share with your friends.

Maybe astopwatch and paper notebookjust arent for you.

(Each of these apps will get their day in the headlines, were sure.)

To hide everything, set your profile (not just sessions) to Private as well.

To get the most privacy,Strava says that you could:

Turn on Enhanced Privacy in tweaks.

Turn on Private By Default, which keeps activities private to only you.

It doesnt affect past activities.

Private activities dont appear on leaderboards and wont appear on the next edition of the public heatmap.

Turn on Hide from Leaderboards.

This doesnt affect activities youve already done.

Turn on Hide from Flybys.

Block anybody you dont like.

Turn on Hide Training Log.

Set Privacy Zones around your house, place of work, etc.

Strava will hide the portion of your activity that starts or stops in the privacy zone.

There are major tradeoffs to each of these options.

And the caveats on the different privacy controls are labyrinthine.

In invite-only clubs, your activities linked on the leaderboards will only be visible to other club members.

you might:

Set your account to private, which stops your profile from showing up in search results.

This doesnt change your old activities.

Change the Activity Viewable By setting on individual activitiesagain, only from the website.

Again, just from the website.

Thats it, apparently.

you could alsoremove runs individuallyfrom your feed.

you could also share them, or not, on other social media.

Keep scrolling to set the privacy on your graphs, too.

You cant change the prefs on your About Me or the date you joined; these are always public.