Duke finished the puzzle in 365 seconds.
Robby completed it in 261 seconds.
Happy completed it in 60 seconds.
Ongoing Score:
Happy: 4
Robby: 2
Duke: 0
Going into the last leg, here's how it works: For anyone other than Happy to win immunity, Happy has to fall off first. If anyone is out of the endurance challenge before him, then Happy wins immunity. If Happy falls off first, then we'll see if Robby wins. If robby wins this stage after Happy gets last, then we do a head to head tiebreaker between the two of them.
Duke, you are out of the running, but your performance in this leg of the challenge will affect the other two's chances at immunity.