LenaGol0vach (real name Sergey) is a russian-speaking streamer who gained his fame through Hearthstone and Dota 2 broadcasts. Sergey is known in the Dota community for his “DAUBI” meme and his emotional behavior during the game.

LenaGol0vach started his streamer career in 2016 by hosting broadcasts on the Twitch platform that were dedicated to Hearthstone. However, Sergei also had a passion for CS:GO and Dota 2. Up until the spring of 2022, the content on LenaGol0vach's streams was mostly related to Hearthstone, where Sergey reached the highest rank of “Legend”.

After an update in Hearthstone, which Sergey did not like, he moved to Dota 2, which significantly increased online on his broadcasts. Despite the fact that the streamer's rating when playing on broadcasts hovered near the 2,800 MMR mark, Sergey himself claimed to have a main account with 7,200 MMR, once he even hosted a stream where he played, as he claims, on his main account. His top ranked game is watched by over 10,000 viewers on Twitch. The content maker considers Sven to be his signature hero. LenaGol0vach fans like his self-confidence, funny “rages” and memes related to his personality. Among the fans of Sergey's streamers are pro Dota 2 players such as Anton dyrachyo Shkredov, Alimzhan watson Islambekov and Zaur Cooman Shakhmurzaev.

In April 2023, LenaGol0vach participated in BetBoom Streamers Battle 2 as part of Yaroslav NS Kuznetsov's team, but left the event early, quitting right during one of the episodes. As the main reason for his withdrawal from the tournament, Sergey cited a strong disparity in the level of play of the teams participating in the competition.

Another recent tournament in which LenaGol0vach participated was BB Streamers Battle 9, where he and his team of other streamers finished in 7th place.

Serhii does not hide his opinion on the state of Dota 2. At the beginning of 2025, he stated that he was ready to switch to smurf accounts if the developers did not take action against dishonest players. He also added that a significant part of the problem lies in the ease of ranking up using double bet tokens and the ability to pass calibration effortlessly while gaining a large amount of rating.

In addition to regular streams, he takes part in various tournaments and events, such as a media poker tournament, where he secured first place and earned $22,000.