I lost a match I didnt play

Hi,
Im playing some FF an social Playlist,
About 5 hours ago I was playing with a friend Mythic FF (I had 0 loses in that map and in FF in general), so I notice my friend didn’t charge the game, I didn’t see his emblem, so I left the game before It started and reset the game (H5). But when I went to my stats, I saw they count It as If I have quit that match. So It was my first lost…
My question here is: how much time do I have for quit the lobby before the game starts? I dont wanna lost because my friend didnt enter the game and maybe get banned for quit (in FF the game freezes very often).
Regards!

I think you can still quit the lobby/close the game between the “Searching for spartans” and “Starting the dedicated server” message, so before all players are found (and you can’t press B to back out). If you close the game after that, you’ll get DNF.