The rich ones hire posh private houses or hotel suites....the poor ones stay
in cheap hotels, b&b's....or in some noteable cases, they sleep in their car
in the tournament carpark.
Big tournaments have player liason dept's....and usually a player entry
reception, where the players must check in and out of the ground....and
update the tournament as to their movements etc. On playing days, the
players are given a time by which they must arrive on site....usually a good
margin before their match.