Round robin has one major flaw other than the time required: Once it gets to the point where a player knows he's out of the running, the incentive for him to compete isn't there anymore. So you'd have instances where these players would pretty much just give up and essentially give their later opponents easier matches and possibly "unearned" wins. Round robin is one of those things that is sound in theory but has some pretty serious issues in practice.
With a double elimination format, there is always an incentive to play as long as you're still in the bracket, no matter where you are in the bracket, because as long as you're still in the tournament it's possible for you to still win.
Good point. Personally, I don't think that effect would happen pool of players where everyone is focusing on improving.
Maybe in high level competition...
I've helped run tournaments at small gatherings. The goal was to improve the player pool skill. There was a big gap from who was good and who wasn't good. Through some trial and error, we established that the general rule should be, if we had less than 8 entrants, round robin -> top 2 play 3/5 grand finals, single elim. If more than 8 entrants, double elim. In the trial and error process, we actually did round robin regardless of the player count. I don't think people understood it and they actually wanted double elim all the way. After some explaining and more tournaments, they actually liked it. Also, a lot of people liked round robin because they felt they got more bang for their buck. Lower-level players didn't like the feeling of 0-2 and appreciated they got the feel of matchups with some pressure on the line, being it is a tournament. That's
exactly what we were trying to accomplish. Time did become in issue and that's how the general rule was established, but I don't think I ever came across the issue you just pointed out.
And then there used to be a small tournament with a decent cash prize. They kept having them every week for about two months. My friends and I would go and reap the rewards. Heck, OnlineTony and Hugo101 started showing up. I don't know why the pot monsters kept showing up but they did. There was never any improvement from them. If it was round robin, it would give them more room for learning and experience.
There was a team tournament hosted by LevelUp that took the best players from the major regions of California. Qualifiers were held in each region. I thought I had a good shot in my region. The qualifier was round robin and going in, I tallied up in my head of who I knew I could beat and who I knew I couldn't. In the end, I lost EVERY matchup. There was a point I knew I was out of the running but I really wanted a win. I didn't even think of throwing away matches. From then on, the incentive for me was pride and to improve my game.
You bring up a good point but personally, I've never experienced it. I could see it happening though, especially if one doesn't understand the format and how it could benefits them.