Who shows first?

[chemist]

pretty sure EPT/UKIPT had a rule where both had to show for at least a season or two but not 100%

EPT has a rule with no river action that you can muck if you want to, but for a player to collect the pot they have to show.


Online UTG would always have to act before button.
In fact any game UTG should be the first to act, last aggressor should be totally irrelevant.