premise: The Palm Harbor Open is a defunct tennis tournament that was played on the Grand Prix tennis circuit in 1980. The event was held in Palm Harbor, Florida and was played on outdoor hard courts. Paul McNamee won the singles title while partnering with Paul Kronk to win the doubles title.
hypothesis: The Palm Harbor Open was played over 10 hours ago.
reason: It was played in 1980 which is almost 40 years ago, so this is clearly correct. It's difficult because I used the measurement of hours which seems to confuse the system.