.
Maybe this? https://www.mangago.zone/read-manga/ao_no_flag/
No sorry it’s a yaoi
It’s not it sorry, it’s a bit older I believe, basically it’s a manga where one of the guys (the top) proposes “competitions/matches” with another guy (the bottom) in disguise of fighting over their female friend, but in actuality he likes the guy. The bottom always loses. One of their “matches” I remember was a kissing match and other things like that ^^; It was a little dubcon in the beginning but then it got better, I’d really like to know how it progressed.
I didn’t save it, but I’m looking for a bl where it’s like a “love triangle”, with 2 guys and 1 girl. They kind of “fight” over the girl, in it the top makes a competition/match for things but he doesn't actually like the girl he likes the guy.