Random Team Generator
The random team generator splits fourteen players into two teams of seven, and every one of the 1,716 possible lineups has exactly the same chance.
2 random groups
- Group sizes 14 divides evenly into 2.
- 7, 7
- Names read
- 14 names
- Method The whole list is shuffled, then the first 7 go to group 1, the next 7 to group 2, and so on.
- Fisher-Yates shuffle, then dealt in order
- Equally likely orders 14! = 14 x 13 x ... x 1, and each order comes up with probability exactly 1/14!.
- 87,178,291,200
- Different ways to form these groups Counting a grouping once regardless of the order inside each group or the order of same-sized groups.
- 1,716
| Group | Size | Members |
|---|---|---|
| Group 1 | 7 | Hugo, Jack, Maya, Dev, Leah, Ella, Grace |
| Group 2 | 7 | Ava, Chloe, Ben, Noah, Isla, Finn, Kai |
How the Random Group Generator works
Picking teams by captains is fast and reliably unfair, and everyone knows who was picked last. A random split avoids both, as long as it is actually random, which mostly comes down to the shuffle.
This generator shuffles the player list with Fisher-Yates (at each position it picks one of the players not yet placed, uniformly), then deals the shuffled list into teams. For two teams of seven from fourteen players, that makes every one of the 1,716 possible splits equally likely. That count is 14! / (7! x 7! x 2!): the ways to choose seven players for one side, 3,432, halved because swapping the two teams gives the same match.
When the players do not divide evenly, the first teams get one extra player each and the rest one fewer, so the sizes never differ by more than one. With 15 players and two teams that is 8 against 7. If an uneven match is a problem, one player sitting out each round in turn is fairer than a permanent 8 against 7, and the simplest way to do it is to leave that player off the list for the draw.
What a random split does not do is balance ability. Two teams drawn fairly can still be lopsided, and with small teams it happens often. If balance matters more than the draw being blind, sort players by ability and alternate them between teams, then use a random draw only to settle ties or who goes in which team. Mixing the two (shuffling, then quietly swapping a couple of players to even things up) gives a draw that looks random and is not. It is better to do one or the other openly.
Each draw is fresh, with no memory of the last one, so a lineup cannot be reproduced later; if the result needs to be checked, screenshot it when you draw it.
Team names are numbered rather than chosen. If the teams need names or colors, assign them after the draw. Team 1 is not more likely to contain anyone in particular than Team 2.
Random Group Generator FAQ
How do I split 14 players into two random teams?
Shuffle the 14 names and deal them into two teams of 7. There are 1,716 possible splits, all equally likely.
What if there is an odd number of players?
The teams differ by one: 15 players make teams of 8 and 7, and who ends up on the larger team is part of the random draw.
Can it balance the teams by skill?
No. It is a blind draw, and a fair draw can still be lopsided. To balance by ability, rank the players and alternate them between teams instead of drawing.
Can I make more than two teams?
Yes, up to one team per player, and the sizes stay within one of each other.