Board Game Arena

One of the players in a tournament game ran out of time. On my phone the skip option is the most visible, attractive graphic on the page. For three turns I have been worried that I might absent-mindedly choose skip.

Can I undo the action if this happens?

It appears in this case the player who was winning the game skipped, on the last turn.

It double checks with you before you actually do the skip (I believe with a popup so it's harder to ignore). So unless you absent-mindedly click twice... But no, once skipped, you cannot undo.