The case for running with someone is usually made as motivation, which is vague enough to ignore. The measured version is more convincing, and it is about attendance rather than effort.
What follows is what the evidence says about partners, then the three details that decide whether a pairing survives past the first month.
This is not a pub. Ages 13+.
A 1995 study in the Journal of Sports Medicine and Physical Fitness followed married adults who joined a fitness programme, some with their spouse and some alone. After twelve months, 6.3 percent of the pairs had dropped out against 43 percent of those who joined by themselves.
The part that makes it interesting is what the researchers also measured: self-motivation scores did not differ between the two groups. It was not that the disciplined people happened to bring somebody. Having a person expecting you was the thing doing the work.
One caveat worth carrying: that study is about spouses at a gym, not about strangers who run. And partners cascade. When one half stops, the other usually stops within weeks, which is a good argument for two or three loose running partners rather than one load-bearing one.
Say the actual figure. "Ten-minute miles" or "six-thirty per kilometre" or "I run forty minutes and I do not stop". Nobody minds a slow number and everybody minds finding out on a Tuesday morning in the cold.
Use the talk test to check it honestly: an easy pace is one where you can speak in full sentences, not gasp out three words. Most people run their easy runs a little too fast, and most people quote a pace they can hold on a good day rather than a normal one.
This is where a pace gap stops mattering. In Stephen Seiler's work on how endurance athletes actually train, roughly eighty percent of sessions sit in that easy conversational zone, with the hard fifteen to twenty percent kept genuinely hard. So the runs you most want company on are the easy ones, and on an easy run the faster of you is doing a recovery run, which is useful to them rather than a favour to you. Save the intervals for running alone. Trying to hold a group's pace on a day meant to be easy is one of the most reliable ways for a slower runner to pick up an overuse injury.
Vague plans die. Not from lack of will, from the friction of agreeing a time every week, which is a small tax that eventually exceeds the enthusiasm.
So fix it once. One day, one time, one meeting point precise enough to stand at: the north gate of the park at six fifteen on Tuesday, not "the park, mornings". The research on this is specific too. Pairs who agree exactly when and where they will exercise together follow through more than pairs who simply support each other's goals.
Start with a single trial run before agreeing to anything ongoing. Ten-week beginner running programmes see roughly half the group still turning up at the end, so plan on some churn. Keep the slot even when a partner fades. A standing time somebody else can join is worth more than the particular person who started it.
On Notapub you write it in one line. "Ten-minute miles, five or six kilometres, Tuesday and Thursday at six, from the north gate of Sefton Park." There is no listing to maintain and nothing to bump. That sentence is matched to runners near you whose own words line up with it, so they hear about you rather than you scrolling a group. If the pace turns out to be wrong you change the sentence, and it goes back to work.
For a first run with somebody new: meet at the start of the route rather than at your door, pick something public and well used, go in daylight or on a lit loop, and tell one person where you are going and roughly when you will be back. Nothing about this is unusual for runners. It just tends to get skipped with someone you already feel like you know.
Do one trial run before committing to anything. A gap of half a minute a mile is fine on easy runs and unworkable on a hard session, so pair up for the easy ones and do the workouts alone.
What you wrote is matched to people nearby whose own words say they want the same thing. They get brought to you, so there is no group to join and nothing to keep bumping.
Yes, on iPhone, Android and the web, for ages thirteen and up.