Yiannis1970: On 9 hole game if everything is the same, who has played his/her round first.
I have thought the same for years, but it's actually not true. The final tiebreaker is who signed up first, not who played first. Why do you think Seb always enters a bracket in #1 or #2 spot 😉. Stumbled upon that after winning a round with a 9 birdie round against someone with the same card, who posted his score before I did, but I signed up before him. I thought there was a glitch, but it was actually Dodgyputter who thought of the idea, that "1st entry" actually means the 1st to sign up instead of the 1st to play. It turned out to be true and proved a number of times since that. We could probably all agree it's the stupidest way to resolve a tie, but that's what it is.
@Bossbird
As for SD countbacks, it was tested and explained here
https://www.wgt.com/forums/t/725341.aspx