Q: When the leaderboard is live and "In Progress", are ties broken for players who have completed their round?
A: It depends on your Event/League Profile settings. Go to Event/League > Event/League Profile > Tournaments & Scoring. There are two options (as shown below).
By default, ties will be retained for players who have completed their round. However, you can alternatively apply the tie breaking set up in your tournaments for players who have finished the round for Stroke Play and Stableford tournaments.