Early career (1998–2000) In 1998, during his third year at Seongbo High School in Seoul, South Korea, Lim developed a passion for the video game
StarCraft. Initially playing as the
Protoss race, he later switched to the
Terran race following a game
patch implementation. After the release of the
StarCraft expansion,
StarCraft: Brood War, Lim attempted to create a
guild called Slayer. However, facing difficulties in establishing it, he adopted the
Battle.net ID SlayerS_'BoxeR' instead. As he achieved high rankings on Battle.net, his ID gained widespread recognition. It was during this time, in August 1999, that Kim Yang-joong, the president of management company Sinabro, approached Lim while he was playing at a
PC Bang. Kim offered him the opportunity to become a
professional gamer. After accepting the offer, Lim had to seek his parents' approval, as pursuing a career in video gaming was an unconventional choice at the time. After considerable effort, Lim convinced his parents, allowing him to sign with Sinabro. In December 1999, Lim secured his first tournament victory at the SBS Multi-Game Championship.
The first bonjwa (2001–2003) The term "Royal Road" is used to describe a player's achievement of winning an
OnGameNet Starleague (OSL) title in their rookie season. Despite the perceived weakness of the Terran race, Lim defied expectations and walked the Royal Road in the 2001 Hanbitsoft OSL. He advanced to the semifinals, where he faced and defeated
Park "Kingdom" Yong-wook with a score of 2–1. Throughout the tournament, Lim won 11 games and lost only one. His success proved that the Terran race was a viable option in
StarCraft, earning him the nickname "The Hope of Terran". Lim continued his winning streak by securing the championship in the subsequent OSL, the 2001 Coca-Cola OSL. In the finals, he faced
Hong "Storm" Jin-Ho, defeating him with a score of 3–2. Lim's achievements extended beyond OSL titles. He also won a gold medal at the
World Cyber Games 2001, where he emerged victorious against
Bertrand "ElkY" Grospellier. Additionally, he finished as the runner-up in the 2001 SKY OSL, losing to
Kim "Garimto" Dong-soo in the finals. In April 2002, Lim secured another championship title at the 2002 KPGA 1st Tour.
2002 KPGA 1st Tour. However, his performance in the first OSL event of the year, the 2002 NATE OSL, was not as successful as he was eliminated in the round of 16. Due to his performances and consistent victories between 2000 and 2002, Lim became recognized as
StarCraft first "bonjwa", a player who dominates all others for an extended period. It was around this time that he also earned the nickname "The Terran Emperor." In January 2003, Lim secured another championship victory at the 2003 KTF Bigi Four Kings Battle. He faced off against
Lee "NaDa" Yoon-yeol in the finals, emerging as the winner with a score of 2–1. After his previous team, IS, disbanded, and with the
Orion Group sponsoring him individually, Lim found himself without a team during the WCG 2002. In anticipation of the formation of the new professional
StarCraft Proleague in 2003, Lim, along with manager Joo Hoon, established the team Orion in November 2002. Entering the KTF EVER Cup Proleague in March 2003, Orion was not initially expected to perform well and was often referred to as "Lim Yo-hwan's one-man team". The team faced personnel challenges at the start of the regular season, as two of their members were amateurs. However, midway through the season, they acquired two more players and finished the regular season in second place. On September 30, 2003, Orion became the Proleague champions by defeating Hanbit Stars in the finals with a score of 4–1. Following their Proleague championship, the Orion Group made a decision not to re-sign any of their players and instead offered to sponsor Lim individually. However, Lim declined the individual sponsorship, as he believed that a team sponsorship held more value. As a result, he decided to rename the team to 4U. The 4U team continued to achieve success and went on to win another Proleague, the LG IBM MBC Team League. In April 2004, the South Korean wireless carrier
SK Telecom acquired the team with a substantial investment of $2million. This acquisition resulted in the official creation of the team known as
SK Telecom T1.
Decline and military (2004–2010) As the years went by, Lim's win rate experienced a gradual decline. In 2001, his win rate stood at 73%. However, it dropped to 61% in 2002, followed by further declines to 55% in 2003 and 54% in 2004. On April 1, 2007, the Air Force announced the creation of its own esports team, known as Airforce Challenge E-sports (ACE). Lim joined this team along with other former professional gamers, including his SK Telecom T1 teammate Sung "MuMyung" Hak-seung. The team's participation commenced with the 2007 season of the Proleague championship. During his time with the Airforce Challenge E-sports team, Lim achieved a total of 24 wins and 38 losses. After completing his military service on December 21, 2008, Lim returned to his team, SK Telecom T1, as his contract with them was still in effect until 2010. It wasn't until October 25, 2009, that Lim secured his first win since returning from the Air Force. In a match against Hwaseung OZ's Park "Killer" Joon-oh in the 2009-10 Shinhan Bank Proleague, Lim emerged victorious. This win was significant as it made him both the first former Air Force player and the first player in his 30s to win a match in the Proleague.
StarCraft II (2010–2012) Lim's contract with SK Telecom T1 expired on August 31, 2010. He made an announcement on October 9, 2010, stating his decision to switch to playing
StarCraft II professionally. He planned to begin his professional career in
StarCraft II by participating in the
Global StarCraft II League (GSL) open tournament. During the GSL open tournament, Lim managed to reach the quarterfinals of the main event. In that stage, he faced
Lee "NaDa" Yoon-yeol, who was regarded as one of the greatest players of all time and someone Lim had never defeated in a major event. The match between them, which marked Lim's first televised match in years, attracted millions of viewers and briefly crashed the internet in Korea due to its high viewership. Lim emerged victorious in this match. Subsequently, he faced
Lim "NesTea" Jae-duk in the semifinals but was unable to secure a win, finishing the event in the top four. After experiencing difficulties playing without a team, Lim announced on November 9, 2010, that he would be forming a new
StarCraft II team called SlayerS. In March 2011, Lim was relegated from Code S, the highest ranked division in the Global StarCraft II League, to Code A. He subsequently, along with many other Korean players, applied to join the upcoming
North American Star League (NASL). Following, Lim shifted his focus from competing in individual events to the
Global StarCraft II Team League (GSTL). Under the banner of the SlayerS team, Lim and his teammates achieved success by winning both the March and May 2011 GSTL championships. Lim received an invitation to compete at the 2011
Major League Gaming (MLG) event in Columbus, Ohio. However, he was dealing with
tendonitis in his shoulder, an injury typically seen in individuals twice his age. Due to his condition, Lim decided to give his invitation to his teammate Moon "MMA" Sung-won. Ultimately, MMA went on to win the event. In July 2011, Lim participated in the MLG Pro Circuit in Anaheim. During the group stage of the event, Lim performed well, remaining undefeated and advancing to the
double-elimination tournament stage. In the upper bracket semifinals, he defeated Park "Rain" Seo-yong, securing a place in the upper bracket final against Jeong "Mvp" Jong-hyeon, a two-time GSL champion. Lim lost to Mvp in the upper bracket final and was subsequently sent to the lower bracket final. In the lower bracket final, Lim faced his teammate MMA. While he lost the first game of the match, he managed to win the second game, equalizing the series. However, MMA emerged victorious in the third match, leading Lim to finish the event in third place. Starting from May 1, 2012, Lim's shoulder injury prevented him from participating in competitive matches. As a result, he forfeited his GSL matches and withdrew from competition. On August 16, 2012, SK Telecom T1 announced that Lim had joined the team as a coach, signing a one-year contract. After serving as a coach for eight months, Lim was promoted to the position of head coach on April 3, 2013. However, Lim made the decision to retire from professional esports entirely on September 26, 2013, citing health complications. == Player profile ==