4. My Special girl

8. My Love, Enlighten Me 

9. Hometown Cha Cha Cha

10. hwarang

let me know if this counts

10 NON-SPORT dramas where a character plays a sport as a hobby, it doesnt need to be shown that the play is consistently, just something they do 

1. LOVE O2O - xiao nai plays basketball but is a game developer

2. Old Fashion Cupcake (Togawa - kendo. Does that count or does it have to be a ball game kind of sport?)

3. Jazz for Two (Second couple play basketball)

4. My Mister - football team consisting of neighbors

5. Happiness - ML was a former baseball player, now he's a cop and baseball is a hobby

6. Nevertheless, - tennis

7. Itazura Kiss (Korean one) Tennis

8.Boss and me ML Basketball

9. True Beauty ML and SML played basketball. One male character was a baseball player destined to turn pro.

10. Devil Beside You - Mike He’s character plays basket ball but it isn't a major plot point.