Crassic Speedrunning Championsip is a championship within the I'm A Speedrunner Community, established May 6, 2018. The championship's origins begin in the International Spyro Grand Prix Tournament with the championship being awarded to the winner of the 3rd and 4th placed competitors from each group. It was so named in recognition to Morgan Avery's dedicated maintenance of the I'm A Speedrunner Wiki, while the name "Crassic" refers to the term Crass Community (coined by KingEurope1 and TheAFH013) which was informally used to describe the collective of individuals that would normally compete in the I'm A Speedrunner and related tournaments. The Championship was announced in a video uploaded to the Spyro Tournaments youtube channel on May 6, 2018. In the video, Nintendogen64 (host of the ISGP) announced the inaugural champion will be decided at the conclusion of the 2018 installment of the International Spyro Grand Prix.
The inaugural champion was g4video5 who defeated Baronzef and Nintendogen64 in a Spyro 2 speedrun which was uploaded to International Spyro Grand Prix on July 8, 2018. The title became vacant on August 4, 2018 after g4video5 took the decision to no longer defend it.