Log Jam

 is a recurring physical challenge in Survivor. It debuted during.

Rules
There is a revolving log over a pit of mud or water. All castaways will compete against each other in one-on-one matches. Whoever outlasts their opponents wins.

In team and tribal based challenges, the winner earns a point for their team or tribe. The tribe who reaches a certain amount of points win.

History
This challenge was first used in . Deena Bennett was chosen to sit as the matches was man-on-man and woman-on-woman. In this game, the winner is the first tribe who reaches five points first. Dave Johnson, Butch Lockley, and Christy Smith all won their respective rounds for the Tambaqui tribe. They won a large fruit basket and various seasonings.

This challenge returned in . Tom Buchanan was chosen to sit out of the challenge because all matches are of the same gender. This time the winner is the first tribe that gains seven points. Jenna Lewis, Rob Mariano, and Amber Mariano all won their respective rounds, winning the Chapera tribe the items that Jenna selected to steal from the Mogo Mogo Camp.

The challenge made its returned in . Unlike the past two appearances, this was an individual immunity challenge. The winner of the match advances to the next round. The last person standing in the last round wins immunity. In the first round, Ace Gordon, Charlie Herschel, Marcus Lehman, Randy Bailey, Sugar Kiper, and Bob Crowley outlasted Dan Kay, Crystal Cox, Matty Whitmore, Susie Smith, Ken Hoang and Corinne Kaplan respectively. In second round, Ace beat Charlie, Marcus beat Randy, and Sugar outlasted Bob. In the final round, all three remaining competitors were on the log. Sugar was the first person out. Marcus outlasted Ace and won individual immunity. He then awarded a second individual immunity to Sugar.

In, the challenge appeared as an individual immunity challenge, accompanied with reward. The castaways paired off, with the winners progressing to the next round and the last person standing wins. Grant Mattos won immunity and a giant chocolate cake, the latter of which he was permitted to share with Andrea Boehlke and Rob Mariano.

Trivia

 * In, the three people who won points for Chapera comprised the final three.