Miroslav BOOM Bitsan is a professional Dota 2 player from Czech Republic. At the competitive level he plays on the position of midranger.

The first team in BOOM's career was Hippomaniacs, which was just going through the process of reformation from Slovakian squad to Czech one. Between 2017 and 2018, Miroslav was the only one left on the team from the original roster. The rest of the players were constantly changing, and BOOM managed to play alongside sehny, Curry, and Jonas SabeRLighT- Volek during this period. Hippomaniacs during this time reached the final stages of qualifying for major tournaments and placed in dash-3 competitions.

In 2018, he played for Imperial Pro Gaming from the CIS, while also playing for his old team at StarLadder ProSeries Season 25. In 2019, he moved to the Russian-Czech Dota2Players stack with MYSmoon. A few months later, BOOM became the only player from Europe in another CIS organization, PRIES. Together with Alexey Smiling Knight Sviridov, Vadim Sedoy Musorin, Khaled sQreen El-Habbash and Vladimir yol Basov, Miroslav represented the tag at the qualifications for EPICENTER Major 2019 and The International 2019.

After a month of playing in different stacks during the reshaft period BOOM returned to Hippomaniacs, but soon the organization disbanded the roster. After playing together a bit more, the players also decided to continue their careers separately. Thus, at the end of 2019, Bitzan joined ViKin.gg. In almost a year of the "online era", the team took prizes at many small tournaments, made it to the top 3 at ESL One Los Angeles 2020 Online, and also won the BTS Pro Series Season 3: Europe/CIS, DOTA Summit Online 13: Europe & CIS, EPIC League Season 3 Division 1 and DreamLeague Season 15 DPC Western Europe Lower Division.

In 2022, he became one of the first players signed by the Gamin Gladiators organization, and soon he was replaced by Marcus Ace Christensen. From the end of 2022 to June 2023, he played for Team Secret, but not very successfully. At the qualifiers for ESL One Kuala Lumpur, he plays for Team Tickles.

After The International 12, BOOM returned to the active roster of Team Secret. Together with him, the team managed to qualify for ESL One: Kuala Lumpur 2023 with a prize pool of 1 million dollars. There the team took 7th place.

The following year BOOM played with Team Secret at DreamLeague Season 22, Elite League 2024 Season 1 and PGL Wallachia: Season 1, but the team's results were disappointing, and after failing to qualify for Riyadh Masters 2024 and The International 2024, the Czech player left Secret and moved to Natus Vincere in September of the same year.

Together with Natus Vincere the guy played at PGL Wallachia Season 2, where he helped the team to achieve a great result: the team was defeated by Tundra Esports in the semifinals of the lower bracket and took the fourth place.

• October 24, 2024 - Natus Vincere has moved its Dota 2 roster to inactive.

As a member of PuckChamp BOOM qualified for ESL One Bangkok 2024, after which the roster was signed by Natus Vincere and became the main roster of the club. At the tournament, the team failed to advance beyond the group stage. In March, the team participated in PGL Wallachia Season 3, but they also failed to reach the Playoff stage.

On April 11 of the same year, as part of Natus Vincere, they confidently defeated Rabotyagi in the grand final of CCT Dota 2 Series 8, winning 3:0 and becoming the tournament champions.

In June 2025, it became known that starting from July 1, Natus Vincere’s main roster will be disbanded and BOOM was put on the transfer list.

On June 28, 2025, Natus Vincere participated in PGL Wallachia Season 5. The team lost in the lower bracket quarterfinals and finished the tournament in 5th–6th place.

It was later revealed that the player had joined MOUZ. At the end of October, MOUZ participated in FISSURE PLAYGROUND 2, where they finished in 5th–6th place after losing in the second round of the Playoff stage. Later, the team entered the top 3 at BLAST SLAM IV and became the champion of PGL Wallachia Season 6.

At the beginning of December, MOUZ competed at BLAST Slam V, finishing in 3rd–4th place after reaching the playoff stage. At DreamLeague Season 27, the team finished its performance in the group stage, with a score of 3-3. At DreamLeague Season 28, the team finished in eighth place.