Players come first
If a feature doesn't help someone play better or find better matches, we don't build it.
About us
About 4thGuy
4thGuy helps players find sessions and helps coaches keep group training predictable.
Why we built it
Finding a decent tennis coach or someone to hit with shouldn't require scrolling through Facebook groups and outdated club boards. But for most players, that's still how it works.
We built 4thGuy to put it all in one place: coaches you can actually book, matches at your level, structured leagues, and a way to track how you're improving over time.
We're live in Finland with coaches, players, sessions and tournaments running weekly. There's a lot more to build.
Who it's for
People to play with
The sport is better when you have the right people across the net. We help you find them.
Open to everyone
Good coaching shouldn't depend on which club you belong to or where you live.
Real improvement
We work with certified coaches and build tools that track actual progress, not vanity metrics.