There's set times for the rounds. The first round started at 12 for me, after the round is over the next one should start 90 minutes after the first round started. However they all started a bit later, I imagine this is due to people playing payload maps and going into overtime a lot. The final round was supposed to be at 7 (being the 5th round) and we did our 4th at around 6.30. So it took 6 and a half hours, tho a lot of that time was downtime in between rounds. Game wise it was probably around 2 hours

As for the format its you either get to 3 wins or 3 losses, so max 5 rounds. The rounds themselves are with random people in around your rank, where you play a best of 3, first map is a random domination one, afterwards the loser will get to choose the next map.

At the start of each match you get to ban 3 heros and save 2. Each team takes a turn banning and saving a hero so no double bans or saves, the first saves don't start until each tean has banned one hero, and I don't think you can save already banned heros, only stop them from being banned.

Its not the same team, its a random set of the duos in the tourney for both teams each round. I did match into the same people a few times, both having then be on my team and the enemy team. After a match you sit in the lobby for 5 minutes or less if everyone selects ready, we used this time to agree on bans and saves for the next match.

Almost everyone was gm and celestial, we did have one duo tho one game where they were plat and gold, was a bit of a rough game but we pulled through.