Saturday tourney's
Graham,
A few reasons for one day tourney's mainly happening on Sunday's.
Firstly, Saturday may be a work day for some players (so may Sunday you cry, which is true but less so).
Secondly, Saturday's are often the only day people can go shopping. They like to keep them free so they can get things done.
Thirdly, on a rec-ball site such as Bullswood, Saturdays tend to have more players than on a Sunday. It's good business sense to hold a tourney on a day which is going to be quiter player-wise. Less inpact on your income.
Fourthly, Sunday's are traditional!
I personally prefer tourney's on a Sunday.
Of course I have to state the rider that these are are personal opinions, not the opinions of other tournament organiser's or even of 'da management' at Bullswood.
It would be nice to think that this answers your question, but it probably doesn't.