At our store, we do GNK tournaments once a month from 6PM to 9PM Monday nights. Since we pretty regularly get 10 or more people (@Cranked would probably know if I’m overestimating but that seems to be about the scene to me) it’s not practical in that time frame to actually do swiss pairings, since you’d get probably two and a half rounds done before the store closed. Instead, we do a sort of pseudo swiss where you only play one side for a match and then switch to the next opponent, preferring to play the side you’ve played the least. This tends to let us do something close to 5 half-rounds of swiss against 5 different opponents, which leads to a nice bit of variety.
That said, I think the format is a bit lacking because you don’t get to have the full back and forth of a regular match of corp & runner with the same person, leading to matches feeling a bit undone. Have we basically out grown the 6-9 time slot and don’t have any room for a more regular style tournament? How do other folks’ stores run their regular tournaments/league nights?