After finishing his professional career as a baseball player, Sim returned to Canada, where he worked as a
bartender at his family hotel business in
Duncan, British Columbia. During the
COVID-19 pandemic, while throwing baseballs at a park, he felt "disappointed" that he only threw a baseball at 77 mph. Over the next year, he started training with concrete weights and posted progress videos of himself on
social media platforms, such as
Twitter and
YouTube, trying to reach the goal of throwing 95 mph from training at home. In November 2020, he finally threw 95 mph, achieving his goal and completing his challenge. By that time, he had already gained notable popularity on social media. After he completed his challenge, Sim kept regularly posting on YouTube, where he gained a cult following and also became known as 'King of Juco'. His content consists of videos containing different challenges, accomplishments, collaborations, recreations, as well as other topics. He also collaborated with MLB players in multiple videos, notably
Fernando Tatís Jr.,
Jackson Merrill,
Julio Rodríguez,
Jose Trevino, and
Trevor Bauer. On the platform, Eric Sim is also an advocate for junior college baseball and encourages young players, warning them of the challenges. Since partnering with
Trevor Bauer, Sim also served as a
bullpen catcher for the
Diablos Rojos del México of the
Mexican League when Bauer signed with the team in 2024. Listed at 6'2" and 215 lbs during his playing career, as of February 2025, Eric Sim is currently 295 lbs, with a body fat percentage of 39.2% based on DEXA scan info submitted on YouTube. In November 2025, Sim appeared in a
MrBeast video that featured elite athletes competing against robots in sports. Sim was matched up against "Neo", a humanoid robot that is equipped with a baseball launcher capable of reaching 150 mph (241 km/h). Sim was given 10 at-bats to hit a home run against Neo in order to win. On his 7th attempt, Sim hit a home run, giving Team Human a 2-0 lead in the best-of-seven competition. == References ==