The Challenge: The Duel is the seventh season of The Challenge and the twenty-seventh installment on Ryan's Reality Network.
Applications for the season were first released on September 27, 2017. The application was done online. It consisted of general information about the applicants. the blog is RRNTheDuel and the tag is #RRNTheDuel.
Each player participates in numerous challenges called missions, which are followed by an elimination round — "The Duel." Each challenge has a Veteran and a Freshie winner. The winner of each team is safe from the possibility of having to enter the Duel.
The "safe" (or "immune") contestant begins a voting process by voting for a member of the opposite team, who then selects a member of the original team. This process continues until there is one person remaining on each team; this remaining person is assigned to compete in the Duel that evening.
The person "voted" into the Duel then selects a competitor of the same team to go against them that night, for the exception of that day's challenge winner, and will randomly compete in one of three Duel challenges.
Battle Dome Progress
The contestant's team won the competition.
The contestant's team did not win the final challenge.
The contestant's team won the Mission and was safe from the Battle Dome.
The contestant's team lost the Mission, but the contestant was not chosen for the Battle Dome.
The contestant won the Battle Dome.
The contestant lost the Battle Dome and was eliminated.
The contestant did not compete in the Battle Dome and was removed.