Strike or Gutter

Strike or Gutter (ストライク・オア・ガター) is a Japanese manga series written and illustrated by Yu Ando. It has been serialized by Grand Jump and has been publishing since August 2018.

Story
Touka is an ordinary high school girl who loves bowling. Her father runs a bowling alley, she has a crush on her former coach, and she is a pro at the game. The only issue is that if anybody watches her bowl, she becomes extremely conscientious of her body and plays poorly. To ensure this doesn't happen, Touka's best friend tries to help her overcome her shyness while bowling.

Volumes and Chapters
The series currently has two tankōbon volumes.