title, Lo defeated Keenan Cornelius in the semi-final but made the final a close out when he gave Buchecha the victory, returning the previous year favour. However, after Kaynan Duarte was stripped of his victory for failing a USADA Test, Lo was crowned world heavyweight champion, making him a record world champion in 5 different weight classes, thus dethroning the record held for 20 years by Saulo Ribeiro. On September 6, 2020, Lo competed against Nicholas Meregali at BJJ Bet, fighting him to a draw. He was then invited to compete in the middleweight grand prix at BJJ Stars 4 on November 14, 2020. Lo defeated three opponents on points and managed to win the tournament. 2021–22: Eighth and last IBJJF World title Returning at medium-heavyweight for the first time since 2016, training at Unity Jiu Jitsu in New York, Lo won bronze at the 2021 World Championship and at the 2022 Pan Jiu-Jitsu Championship; he then became the 2022 World Jiu-Jitsu Champion after defeating Isaque Bahiense in the medium heavyweight final; winning his eighth and last world championship title, an accomplishment only reached at the time by three others in IBJJF history. That last title placed him at number 1 in the medium-heavy male gi division for the 2021–2022 season of the International Brazilian Jiu-Jitsu Federation Ranking. Lo was booked to compete against Alex Munis in the main event of BJJ Stars 5 on February 6, 2021. Lo submitted Munis with a collar choke to win the match. He then competed in the main event of Big Deal Pro 3 on July 11, 2021 against Henrique Ceconi and defeated him by advantages. Lo was then invited to compete in the no gi grand prix at BJJ Bet 2 on August 1, 2021. Lo won his first two matches against Rafael Paganini and William Tackett but was submitted by Lucas 'Hulk' Barbosa by rear-naked choke in the final. Recognition His guard technique earned Lo recognition as one of the "best pound for pound grapplers to have ever graced the mat." According to top coach John Danaher, Lo was "unquestionably one of the greatest Jiu-jitsu athletes of his generation and indeed in the history of the sport". The International Brazilian Jiu-Jitsu Federation called Lo "one of the greatest athletes our sport has ever produced" and "an example of a true black belt, martial artist and champion on and off the mats".