Most money you can lose in a game of jeopardy?

1000 dollars by getting third place prize if they had second place 2000 dollar prize locked up before they missed the final Jeopardy Round wager and ended in third place. Any other amount was not something they lost, but rather something they could have won. Of course if someone in Final Jeopardy had a lock for first if they did not wager and then did wager and lost the wager whatever amount they had before the wager would be the most.