- "Karate is about discipline. It's about inner strength. It's about confidence. Okay, lessons that you can use for the rest of your life. Look, I don't know where I would be today, or who I would be today, if it wasn't for my sensei. We don't need this tournament to do cool kicks or sell tickets, we need it to show the bullies of the world that we're not afraid. It's called the "All Valley" because it's for everyone, to give everyone the chance to show what they can do, to fight, to become a champion. And we deserve that chance."
- ―Miguel Diaz[src]
The tournament was established in order for karate dojos to compete against each other.
Pre Karate Kid
The tournament first debuted in 1968. The Cobra Kai Dojo began competing late 1970s and managed to win the tournament four times between the late 70s (Probably 1979) and 1983, with their most notable champion being Cobra Kai star Johnny Lawrence in both 1982 and 1983. The only other known champion besides Johnny was Darryl Vidal, who won the title in 1981.
In 1984, Daniel LaRusso makes enemies with Johnny and his friends at Cobra Kai. When it is agreed that Daniel will compete against the Cobra Kai's in the All Valley tournament, Miyagi (maintenance man in Daniel's apartment complex) trains him. Daniel enters the tournament as a newcomer, while Johnny enters as the two time defending champion. Daniel defeats Johnny in the finals with the crane kick to the face, to become the next champion.
Although not held, the aftermath from the 1984 Tournament is shown as Cobra Kai's sensei John Kreese destroys Johnny's 2nd-place trophy and attempts to choke him, only to be stopped and defeated by Miyagi.
9 months following the aftermath of the 1984 tournament, Kreese is revealed to be broke due to his actions after the tournament, but Terry Silver decides to help him enact revenge on Daniel and Mr. Miyagi. Daniel wants to fight in the next All Valley in order to defend his title, but Mr. Miyagi requests him not to. While Daniel accepts Mr. Miyagi's request, he is soon brought in by Terry, who tricks him into thinking he wants to train him. However, his true intentions are to make Daniel believe he is strong and during the tournament, but then have Mike Barnes (whom he hired) beat and humiliate Daniel, which will re-popularize Cobra Kai and make everyone enroll, and allow him to reopen and run it with Kreese.
Daniel is given a bye to the finals, due to a new rule giving the defending champion an automatic spot in the finals. During the finals, Mike, under Silver's order, repeatedly wins a point, but then commits an illegal move, which results in him losing the point, so that he has more chances to attack Daniel and cause him pain, as Silver wants Daniel to suffer pain more than just lose. Mike severely injures and terrifies Daniel. However, in the sudden death round Daniel uses the kata technique he learned from Mr. Miyagi to flip Mike and win the tournament for the second year in a row, ending Cobra Kai for good (or so it seems) and making Daniel a two-time champion.
Pre Cobra Kai
In the aftermath of the 1985 All Valley Karate Tournament, The All-Valley Committee permanently bans Cobra Kai from competing in the tournament going forward, due to the unethical actions of Barnes, Silver and Kreese in the 1985 tournament. In the 32 years between the third film and Cobra Kai, the only known champion is Xander Stone of Topanga Karate who won the tournament in 2017. No champions or runners-up between 1986-2016 are known, though Topanga Karate are implied to have won during that time or an unknown dojo. In 2017, there was apparently some sort of issue with a corn dog vendor that was at the tournament. It was also brought up in the 2018 All Valley Karate Tournament Committee that there had been some dwindling attendance issues, with a push for new colored mats for the 2018 event.
Thirty-three years after the 1984 tournament, Johnny, who has been down on his luck since the tournament, decides to re-open Cobra Kai and redeem himself. Johnny trains his students throughout the course of a few months. He makes an inquiry into finding out how to enter the Cobra Kai Dojo into the upcoming 2018 All Valley Karate Tournament, but is informed over the phone that a lifetime ban was emplaced. Johnny would attend the next All Valley Karate Tournament Executive meeting to appeal this decision. During the meeting, Daniel LaRusso arrives and takes his seat as a member of the council. Johnny makes a strong pitch for why his dojo should be allowed to compete and have the ban recinded. Similarly, Daniel makes a strong case for the ban to remain in place. The Committee asks for closed door vote, and the result is the ban is lifted (against Daniel's best efforts) and Cobra Kai reinstated. Cobra Kai would re-enter the tournament, and would see several of their members (Miguel, Hawk, Aisha) reach the quarterfinals; and would see both Miguel and Hawk reach the semi-finals. Through the challenge of Miguel Diaz (Cobra Kai star) and Robby Keene, Cobra Kai wins the tournament, and have a new found popularity. Despite their victory, it turned out that Miguel and a few others used dirty tactics and cheap shots to win.
Though not held, the performances by Miguel and fellow Cobra Kai student Hawk in the tournament, result in several teenagers joining Cobra Kai, and Johnny rebukes and punishes his students, Miguel and Hawk in particular, for their dirty tactics in the tournament.
During the duration of his coma, Miguel is dreaming about fighting an unidentified opponent to defend his title as champion in the All Valley Tournament. In the episode The Good, The Bad, and The Badass, the tournament is canceled by the Northridge city council in order to draw attention away from the karate brawl at West Valley High School during the episode No Mercy. The decision is ultimately overturned following an appeal hearing heralded by Miguel Diaz and Samantha LaRusso. In the season finale December 19, following a heavy karate fight between Daniel and Kreese, the latter proposes settling the tension in the upcoming tournament.
|1981||Locust Valley Karate Club||Darryl Vidal||Unknown||Unknown|
|1982||Cobra Kai Dojo||Johnny Lawrence||Unknown||Unknown|
|1983||Cobra Kai Dojo||Johnny Lawrence||Tommy||3-0|
|1984||Miyagi-Do Karate||Daniel LaRusso||Johnny Lawrence||3-2|
|1985||Miyagi-Do Karate||Daniel LaRusso||Mike Barnes||1-0 (Sudden Death)|
|2017||Topanga Karate||Xander Stone||Unknown||Unknown|
|2018||Cobra Kai Dojo||Miguel Diaz||Robby Keene||3-2|
- The earliest champion known is Vidal. However, Vidal is not the first person to win.
- In an article about the 1983 All Valley, it stated that Kreese led Cobra Kai to their 4th win, possibly indicating that they won in 1979 and 1980, though the champions in those years are unnamed.
- Johnny and Daniel are currently the only champions to win twice, and in back to back years.
- Daniel and Miguel are the only known champions who are undefeated.