Are the teams always men v women?

[Oliver_W]

Last night's was the first I've seen, do they mix it up as the evictions happen?

[Vanessa]

Last night's was the first I've seen, do they mix it up as the evictions happen?

They usually mix them up after the first person leaves.

[MB.]

Most series (all but series 11, I believe?) start out as men vs. women, but the teams quickly get shuffled and usually change on an episode-to-episode basis

[Oliver_W]

Thank you both!