BallmarkIn development for iPhone

See where your practice lands.

Ballmark turns sessions with your hitting partner into a plan and a scoreboard. Pick what you want to improve, play drills built for two, and watch the numbers move week by week.

Being built by club players in Denmark and Sweden. Coming to iPhone.

Top-down view of a half tennis court with the tennis balls from one practice session: 9 of 14 land in the deep zone between the service line and the baseline, 4 land short and 1 lands long.Deep
Backhand depth64%41%This week, 9 of 14 deep4 weeks ago

Lots of court time. Very little evidence.

Committed club players spend hours on court every week. But practice has two gaps.

“What should we do today?”

Without a plan, a session drifts into hitting around. It’s good fun, but it isn’t practice.

“Did my backhand really get deeper?”

You feel like you’re improving, but you can’t know. Ballmark shows you.

How a session works

  1. Pick a goal

    Deeper groundstrokes, or more serves to the T. Choose one or two things to work on.

  2. Play the plan

    Ballmark builds a session for you and your hitting partner, with drills where both of you keep hitting.

  3. See where it landed

    A phone on a stand films the session. Every drill is scored automatically, and your progress builds week by week.

Four things worth getting better at

Each goal has a target zone on the court. Ballmark counts what lands in it.

  • Deeper groundstrokes: the target zone is highlighted in yellow

    Deeper groundstrokes

    Share of rally balls landing past the service line.

  • Serve placement: the target zone is highlighted in yellow

    Serve placement

    Serves that hit the target you picked: T, body or wide.

  • Return in play, and deep: the target zone is highlighted in yellow

    Return in play, and deep

    Returns that come back, and how many land deep through the middle.

  • Transition to the net: the target zone is highlighted in yellow

    Transition to the net

    Approach shots that land deep, and volleys won after coming in.

Your hitting partner doesn’t need the app.

Add them by name and they just play along: returning your serves, passing your approaches, rallying back. Nobody spends the session feeding balls.

When they want their own stats, the sessions you’ve played together are already waiting for them.

Practice with a plan. Progress you can see.

Ballmark is in development, and the first sessions are being recorded at clubs in Denmark and Sweden. The iPhone app comes first.