> For the complete documentation index, see [llms.txt](https://docs.scoreholio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.scoreholio.com/guides/setting-the-right-number-of-courts-and-rounds.md).
# Setting the Right Number of Courts and Rounds
One of the best things about Round Robin is that everybody gets to play the same number of games. To make sure that happens, you need to know how many games they should play, how many courts you should run, and more. The good news is that it’s easy peasy thanks to some rules of thumb I’ll share below. I’ll explain a little bit of the “why” for the curious types.
## Team Generation Matters
Depending on the type of Team Generation you choose for your tournament, the best rule to follow will change. Set Teams and Singles live by a different set of rules than Switcholio. Look below for more info on the Team Generation you are running.
## Singles and Set Teams
1. **Odd + Odd = Bad:** Don’t run an odd # of games *and* an odd # of teams.
Just make sure the number of games **OR** the number of players is even.
Yes, either one. If you set your round-robin for 2, 4 or 6 games, you can have *any* number of individual players — odd or even — and they will all end up playing the same number of games. And if you know you’ll have an even number of teams, say 16 or 32, you can run any number of games. For social events with an unpredictable number of players, most tournament directors set their round-robin to four games because it means they never have to worry about an odd number messing with their plan to run 3 or 5 games.
#### How many courts?
Court count is a matter of bandwidth, dictating how long things will take. If you have 24 players on 12 courts, everybody would be playing non-stop and things would blaze. If you ran 3 courts, only 6 people would be playing at a time with 18 on the bench, and it’d take forever. Most tournament directors prefer a “players to courts ratio” of around 3:1. A ratio of 4:1 works too, and you can even run 5:1, but things will take a while. This table shows how this ratio affects how many players are active at a time versus how many are waiting, using 24 players as an example. Pink is problematic. Green is good.
### Blind Draw
A blind draw tournament is when you have everyone sign up as a single player and they are given a random partner for the duration of the tournament.
#### Dealing with an odd number of players in a blind draw
With blind draw events, you will sometimes have an odd number of people who want to play. Somebody is going to need to play solo, and that person will be a “ghost.” If you have an odd number of players, when you click Randomize Players, the system will ask if you would like to add a ghost.
## Switcholio
Switcholio is a fun format in which every player gets a new partner for every game. It’s fun for players, and nice for organizers for a few reasons. First, you can run any number of players, odd or even. You can add people who show up late. And if somebody leaves during an event, it’s not as big a pain as it is when somebody bails during a BYOP or Blind Draw event.
#### How many games?
Just make sure the number of games or the number of players is divisible by 4.\
There actually are some other combinations that work, and you can see those in this table, but I say make life easy and just run four games so you don’t need to worry about it.
#### How many courts?
If you don’t have at least 3 people in “Coming Up” reduce the number of courts.
For Switcholio, the number of courts is key because of the need to randomize players into new pairings for each match. If you have so many courts that everybody is playing all the time, then when a game finishes, those four people will be the *only* four people available to be formed into teams. That’d mean Scoreholio would have to pair them up amongst that group of four.
#### Set Schedule Switcholio
If you do have the perfect players to court ration. I.e. you invited 16 players and have 4 courts, then you should try our [Set Schedule Switcholio ](#set-schedule-switcholio)method.