King of Trios was a three-night tournament promoted by the Chikara professional wrestling promotion. The tournament was a different take on the Tag World Grand Prix event that the promotion was known for annually promoting; in King of Trios, instead of tag teams, there were trios that competed in six-man tag team matches to see who would advance. The tournament served as the promotion's premier event, similar to what WrestleMania is for the WWE.

List of winners

2007

All in all, sixteen trios competed in the tournament, making for a total of forty-eight competitors. The tournament marked the 2007 season premiere of the promotion. The three nights of the 2007 tournament took place on February 16, 2007, in Hellertown, Pennsylvania, February 17 in Barnesville, Pennsylvania, and February 18 in Philadelphia, Pennsylvania. Nobutaka Moribe was originally scheduled to be a part of Team DDT, but had to be replaced by Masamune, after getting stuck in traffic.

2008

The 2008 King of Trios Tournament was held February 29, and March 1 and 2, 2008 at the New Alhambra Arena in Philadelphia, Pennsylvania. The tournament featured 28 teams, up from the 16 of 2007. Team Dr. Keith was originally scheduled to comprise Brodie Lee and the Olsen Twins (Colin Olsen and Jimmy Olsen), but Colin was forced to pull out of the event after signing a contract with World Wrestling Entertainment. His replacement was decided by a random draw. Los Ice Creams' third partner was decided in similar fashion.

2009

The 2009 King of Trios tournament took place over March 27, 28 and 29 at The Arena in Philadelphia, Pennsylvania. This tournament had 16 teams due to the financial troubles of last year (down from the 28 of last year). The Cold Front was originally scheduled to comprise Al Snow, Iceberg and Glacier, but Iceberg could not make it to the show and was replaced by a random draw.

2010

The 2010 King of Trios tournament took place April 23, 24 and 25 at The Arena in Philadelphia, Pennsylvania. Like the previous year, 16 teams entered the tournament. The team of Aeroform and Johnny Gargano earned the final spot in the tournament by winning Absolute Intense Wrestling's 16-team Jack of All Trios tournament, held on April 9 and 10. Team Delicioso was originally scheduled to consist of Cassandro, El Hijo del Ice Cream and Ice Cream, Jr., but Cassandro was forced to withdraw from the tournament, after breaking his leg at Ring of Honor's The Big Bang! pay-per-view on April 3. He announced on a blog on Chikara's official website that he had hand-picked his replacement as opposed to letting it be decided by a random draw. On April 9 Curry Man was revealed as the replacement. Originally Team Mexico (Jorge "Skayde" Rivera, Turbo and Valiente) was scheduled to enter the tournament, but on April 22 the company announced that both Valiente and Turbo were off the event and that as a result they were severing all ties with Rivera, who was in charge of bringing the two to the event and who reportedly tried to hold the company up for more money, despite failing to deliver Valiente and Turbo, who had already taken bookings elsewhere for the weekend. Their replacement trio, who ended up being the team of The Osirian Portal (Amasis and Ophidian) and Sara Del Rey, was decided at the event by a random draw.

2011

The 2011 King of Trios tournament took place April 15, 16 and 17 at the Asylum Arena in Philadelphia, Pennsylvania. As in the two previous years, 16 teams entered the tournament. The tournament marked the first time all scheduled participants were able to make it to the shows. The tournament was dedicated to the memory of Chikara Wrestle Factory graduate Alex Whybrow, better known as Larry Sweeney, who died on April 11, 2011. The whole tournament was released on DVD by Smart Mark Video on April 18, less than 24 hours after its conclusion.

2012

The 2012 King of Trios tournament took place September 14, 15 and 16 in Easton, Pennsylvania. The tournament featured the first ever all-female trios, representing the Japanese JWP Joshi Puroresu and Sendai Girls' Pro Wrestling promotions. Submission Squad (Davey Vega, Evan Gelistico, Gary Jay and Pierre Abernathy) was originally scheduled to become the first quartet in the history of King of Trios, but were unable to make the event due to "travel issues". They were replaced by the team of Mihara, The Mysterious and Handsome Stranger and Tito Santana, a team decided supposedly by a random draw. Submission Squad did however show up later that night and attempted to force their way into the arena. They were subsequently turned away and thrown out.

2014

The 2014 King of Trios tournament took place September 19, 20 and 21 in Easton, Pennsylvania. The streams of each night were available on demand 10 hours after the conclusion of each. On September 23, the entire tournament was released on Blu-ray for the first time.

2015

The 2015 King of Trios tournament took place September 4, 5 and 6 in Easton, Pennsylvania. MK McKinnan was originally announced for the tournament as part of Team Fight Club: Pro, but was on August 25 replaced by Daniel Moloney.

2016

The 2016 King of Trios tournament took place September 2, 3 and 4 in Easton, Pennsylvania. Madison Eagles was originally announced as part of Team Shimmer, but had to drop out due to an injury. Her spot was taken by Solo Darling. The Big Deal was originally announced for the tournament as part of Team Big Deal alongside Rick Roland and Sloan Caprice, but was also forced to pull out due to an injury. They were replaced by The Submission Squad.

2017

The 2017 King of Trios tournament took place on September 1, 2 and 3 in Wolverhampton, England. Originally announced in February 2017 as taking place in Birmingham, the tournament was moved to the larger venue in June.

2018

The 2018 King of Trios tournament took place on August 31, September 1 and 2 in Easton, Pennsylvania.

2019

The 2019 King of Trios tournament took place on October 4, 5 and 6 in Reading, Pennsylvania.