Survival of the Fittest (2015) was a two night, two city professional wrestling event produced by the U.S. based wrestling promotion Ring of Honor. It took place on November 13, 2015 at the Turner Hall Ballroom in Milwaukee, Wisconsin and November 14 at the Hopkins Eisenhower Community Center in Hopkins, Minnesota.

Survival of The Fittest (2015) featured professional wrestling matches that involve wrestlers from pre-existing scripted feuds or storylines that play out on ROH's television program, Ring of Honor Wrestling. Wrestlers will portray heroes (faces) or villains (heels) as they follow a series of events that build tension and culminate in a wrestling match or series of matches.

Survival of the Fittest is an annual tournament held by ROH. For the 2015 event, the winners from designated tournament matches in Milwaukee, Wisconsin advanced to a 6-Man Elimination Match the following night in Hopkins, Minnesota, and the winner of that match will be declared Survivor of the Fittest, and receive a future ROH World Championship match.

After winning a Four Corner Survival match to become the number one contender at All Star Extravaganza VII, AJ Styles will challenge reigning ROH World Champion Jay Lethal for the title in December at Final Battle. As a prelude to that match, Lethal - along with his House of Truth teammates Donovan Dijak and Joey Daddiego - wrestled Styles and his Bullet Club teammates The Young Bucks (Nick and Matt Jackson) in a six-man tag team match during Night 1 of Survival of the Fittest, which resulted in Styles pinning Lethal with his finishing move, the Styles Clash, thus giving his team the victory.

...
Wikipedia