CoreJJ

From ADC to Support: A Career-Defining Shift

CoreJJ began his professional career in South Korea playing the Attack Damage Carry role. His early experience in this position provided him with a deep understanding of bot lane dynamics and carry priorities. This foundation became crucial when he made the decision to switch to the support role, a move that reshaped his entire career trajectory.

The transition allowed him to leverage his knowledge of what an ADC needs to succeed, enabling him to become a more effective and proactive partner in the lane. This change occurred before his greatest competitive successes, setting him on the path to becoming a world champion.

Rise with Samsung Galaxy and World Championship Victory

CoreJJ joined Samsung Galaxy and quickly became part of a team that challenged for the highest honors. In 2016, the squad finished as runners-up at the League of Legends World Championship, a significant achievement that built momentum for the following year. They also secured a first-place finish at IEM Season XI Gyeonggi that same year.

The 2017 season was the peak of this era. CoreJJ, now firmly established as the team's support, helped Samsung Galaxy return to the World Championship stage. They defeated SK Telecom T1 in the finals to claim the Summoner's Cup, making CoreJJ a world champion. This victory is the defining achievement of his career.

Establishing an LCS Dynasty with Team Liquid

After winning the World Championship, CoreJJ moved to North America's LCS, joining Team Liquid. His arrival signaled a new era of dominance for the organization. He helped Team Liquid secure back-to-back LCS titles in 2019, winning both the Spring and Summer splits that year. This domestic success was complemented by a second-place finish at the 2019 Mid-Season Invitational.

His individual skill was recognized when he was named the Most Valuable Player of the 2020 LCS Summer Split, a rare accolade for a support player. CoreJJ continued to add to his trophy case with Team Liquid, winning the LCS Lock In tournaments in both 2021 and 2022, and capturing another LCS Spring split title in 2024.

International Representation and Consistent Performance

Beyond his World Championship and LCS runs, CoreJJ has been a consistent presence in other international competitions. He represented Samsung Galaxy at the 2017 Rift Rivals, finishing second. After moving to Team Liquid, he again placed second at the 2019 Rift Rivals event. On a national level, he was selected to represent South Korea at the 2018 Asian Games in Jakarta Palembang, where the team earned a silver medal.

His career longevity is notable, spanning over ten years of professional play. This experience has made him a veteran leader within any team he plays for. In February 2022, he obtained his green card, confirming his permanent residency and long-term commitment to competing in the United States.

Playing Philosophy and Lasting Impact

CoreJJ has spoken about his motivation, stating that more than just enjoying playing League of Legends, he enjoys the process of improving as a player and a person. This mindset explains his successful role transition and his ability to remain at the top of his game for a decade. His journey from ADC to world champion support demonstrates a high level of game intelligence and adaptability.

Now 32 years old, he remains a central and experienced figure for Team Liquid. His return to the team's starting roster is already confirmed for the 2026 LCS season. With career earnings exceeding $782,000, CoreJJ's influence on both the Korean and North American competitive scenes is secure, marked by a world title and a lasting legacy of leadership and success in the LCS.