"コートでのばかほど、よくプレーすることになる"

Simplified Meaning:

When you're playing sports, especially something like tennis, sometimes thinking too much can mess you up. If you're always worrying about where to hit the ball or how to move, you can get stressed and make mistakes. It's often better to just focus on playing and enjoy the game without overthinking everything. For example, imagine you're playing a game of basketball. If you keep thinking, "I have to make this shot perfectly or everyone will be upset with me," you might get nervous and miss the shot. But if you just go for it and trust your skills, you'll probably do better because you're not letting stress and overthinking get in the way. This advice can help in other areas of life, too. When you're doing a project at work or learning something new, sometimes it's best to keep it simple and not overcomplicate things. Trust yourself and your abilities, and don't get bogged down by unnecessary worries. This way, you're more likely to perform well and also have more fun while doing it.