For the last couple of iterations I would track who the entrants would be in the next Tournament of Champions in order to see what the cutoff money or wins amount would be. That fell off when I saw that The Final Wager was doing that, and what do you know, Jeopardy! is doing their own version on their website:
https://www.jeopardy.com/tournaments/tournament-tracker(Forgive me, I've forgotten how to embed text in the link.)
Catherine Hardee is from the previous qualifying period and bumps off someone by less than $300.