Lycanroc was first seen in A Glaring Rivalry!, having a battle against Tupp, Zipp, Rapp, and their Pokémon. It managed to quickly defeat them with a single Stone Edge. It was later used in a battle against a Sailor's Blastoise and won with a well timed Counter despite having a type disadvantage. It also had a battle against Ash's Rockruff but the battle was interrupted by Team Rocket where it and Pikachu were captured in a net but were freed by Umbreon's Dark Pulse.
Lycanroc reappeared in Rising from the Ruins!, where it left its Trainer to go and find Rockruff after hearing its howling. It eventually met up with Olivia's Lycanroc and took Rockruff to the Ruins of Life. There, they encountered Tapu Lele, who attacked them. After a quick fight it uses Draining Kiss on both Lycanroc and transfers the energy to Rockruff. Lycanroc later watched as Rockruff evolved into Dusk Form. Afterwards, Lycanroc returned to Gladion.
In Rescuing the Unwilling!, Gladion used Lycanroc and Umbreon to fight Lusamine's Absol, which was controlled by Nihilego, to allow Ash to save Lusamine. They were eventually trapped by Absol's Mean Look. In 10,000,000 Reasons to Fight!, Lycanroc was released from the Mean Look after Silvally used Multi-Attack on Absol. Soon afterwards, Gladion and Lycanroc used Continental Crush on Absol. Although Absol appeared to have been defeated by this move, Nihilego made it get back up and continue battling. Gladion told Lycanroc and Umbreon to take care of Absol while he rode off on Silvally to get to Lusamine.
In Filling the Light with Darkness!, Lycanroc was used to help clear the mysterious black clouds that had appeared in Alola's skies. By combining its Z-Power alongside Ash's Pikachu, Kiawe's Marowak, and Lana's Popplio, the Ultra Guardians powered a machine that managed to disperse the clouds.
In Securing the Future!, Lycanroc joined the rest of Alola in showering Necrozma with light so it could return to its true form.
In Showdown on Poni Island!, Lycanroc was battling its teammates on Poni Island. The battle was interrupted when Lillie arrived. Gladion later used Lycanroc in his battle against Ash, where it went up against his own Lycanroc. Gladion's Lycanroc was able to withstand Splintered Stormshards before winning the match with Devastating Drake.
In SM127, Gladion used it in his Grand Trial match against Hapu where it went up against her Golurk and defeated it with Devastating Drake.