There are more ways than ever before to find a training partner.

Of course, you can ask at your own gym. The people who run the desk may know of someone who’s looking to pair up, or might be open to it; they may also have a bulletin board you could post a notice on, or a Facebook page where you could post a request.

But, thankfully, there are some higher-tech ways to do your scouting, and none of them involve Craigslist. (I gave Craigslist a shot, but the search for “activity partners” and “running” served up the results “longest-running poker game in New York” and “how to tango your way out of depression.” Maybe next week.)

Here are three training-matchup sites I tried, and what I learned.