[3] During the same announcement, they unveiled their initial seven-player inaugural season roster, consisting of a mix of nationalities, as well as their head coach David "Dpei" Pei.

[5] The Gladiators went 10–10 through the first half of the season, prompting them to make roster changes, including the acquisition of tank players Baek "Fissure" Chan-hyung from the London Spitfire in February and Kang "Void" Jun-woo from Contenders team KongDoo Panthera in March.

[23] In the preceding offseason of the 2020 season, controversy arose among Kroenke Sports & Entertainment (KSE) and their partnered management organization Sentinels.

[25] The Gladiators parted ways with all but two of their players from the 2019 season, retaining only main support Benjamin "BigGoose" Isohanni and flex support Jonas "Shaz" Suovaara; among the many acquisitions of the offseason were veterans tank Indy "Space" Halpern, tank Son "OGE" Min-seok, and damage player Kim "Birdring" Ji-hyeok.

[27] On September 4, Los Angeles advanced to the season playoffs after a 3–2 win over the Toronto Defiant in the North American play-in tournament.

[30] In the 2021 offseason, the Gladiators made several roster changes, including the departure of BigGoose and Shaz, who had been with the team since their inauguration,[31] and the signing of support player Grant "Moth" Espe, who was coming off of back-to-back OWL championships with the San Francisco Shock.

[36][37] While the team defeated the Philadelphia Fusion in the first round of the double-elimination tournament,[38] consecutive losses to the Atlanta Reign and the Shanghai Dragons ended their playoff run.

[39][40] In the offseason preceding the 2022 season the Gladiators parted ways with head coach Dpei, as well as several players, including Moth and Birdring.

[42] The Gladiators won the Western region Kickoff Clash, the first tournament of the season, after they defeated the Dallas Fuel in the finals by a score of 4–0.

[43] On July 23, the team won the season's first global tournament, the Midseason Madness, after defeating the San Francisco Shock in the finals, 4–2.

[3] The name and logo, a roaring lion head in a battle-hardened shield, were selected in spirit of the original superstars of sports and entertainment (as well as the Los Angeles Memorial Coliseum), the gladiators of ancient Rome, whose ferocity and "willingness to make the ultimate sacrifice captured the hearts of millions of people of all backgrounds for centuries".

In addition, the written logo was revealed with a contrasting color used intentionally for the connected letters L and A in "Gladiators", to highlight the Los Angeles location of the team.