Lim Yo-Hwan in 2011
|Revised Romanization||Im Yohwan|
|World Cyber Games|
|Gold||2002 Seoul, South Korea|
|Gold||2001 Daejeon, South Korea|
Lim Yo-Hwan (born 4 September 1980), known by the pseudonym SlayerS_`BoxeR` (usually shortened to BoxeR), is one of the most successful players of the real-time strategy computer game StarCraft to date. He is often dubbed The Terran Emperor (Korean: "테란의 황제"), or simply "The Emperor". In late 2010, he retired from StarCraft: Brood War and founded a StarCraft 2 team: "SlayerS". Since SlayerS disbanding, he has returned to his original team SK Telecom T1 as a coach for Starcraft 2.
Lim has a record with 548 wins and 416 losses (56.80%) in his professional career. He is one of the highest-paid professional gamers, with annual earnings that exceed $400,000 US Dollars and endorsement contracts that bring in an additional $90,000 per year. In 2004 he was voted the greatest gamer of all time by readers of ESReality, a popular Western electronic sports website, and in June 2006 he was included in an MTV list of "The 10 Most Influential Video Gamers Of All Time."
Lim first came to fame by dominating professional StarCraft while choosing to use the Terran race. The following reign of dominance earned him the nickname the "Terran Emperor", a reference to StarCraft lore. During this early time in his career he innovated heavily, creating many new strategies which are still used today, most notably making much more effective use of the Terran Dropship unit than had been achieved in the past. He also gained a reputation for being able to turn around matches against the odds and having excellent micromanagement (unit control) skills. He would often continue the game despite heavy disadvantages yet still pull out a victory. In contrast, his weakness is thought by some commentators to be poor macromanagement (economy/unit production) skills in comparison to other top-level professional StarCraft players.
BoxeR is most renowned for his creativity; often building proxy barracks. In many games, he has gone for quick attacks ("rushes") or special ops units ("ghosts") which make the games extremely entertaining. He is very well respected in StarCraft both in Korea and abroad.
Though he is no longer as dominant as he once was, he was ranked 11th in the April 2006 Korean e-Sports Players Association (KeSPA) rankings, and made it to the finals of the EVER Ongamenet Starleague (OSL) of late 2004 (losing to iloveoov by three games to two) and the finals of the 2005 So1 OnGameNet Starleague (losing to Anytime by three games to two).
Lim has played professionally since version 1.07 of StarCraft, and has managed to stay competitive by constantly changing his style, and has had a great influence of the development of modern playing styles, especially for Terran players. He is the all-time leader in games played and wins. He is a two time OSL champion, one time MSL champion, two time WCG champion, and leader of the SK Telecom "T1" team. He is considered to have a strong eye for talent in that position, as he drew Choi Yeon-Sung (iloveoov), among others, from the amateur ranks. His team has consistently been the strongest in the Proleague.
On August 2006 Lim announced at the MSL group draws that he had received his draft letter from the government, and would be entering the Republic of Korea Air Force (ROKAF) by the end of the year. He later said he would try his best to return after his 2 and a half years of service.
After Lim joined the Air Force, he started putting his fame to work. After a month and a half an Air Force pro-gaming team was created. Lim found some retired pro-gamers who joined the Air Force before him, including H.O.T-Forever, CLon, ChRh, fOru, Rage, Qoo, Sunny and MuMyung. Together they formed the first military pro-gaming team. Two months after the team was announced, ACE (Airforce Challenge E-sports) was official. ACE first played in the 2008 ShinHan Proleague, and has participated ever since.
On December 22, 2008, Boxer returned to SKT1 and played on that team as military service was ending, and has remained on its A-Team; however, he has concentrated on playing individual league matches since then.
In September 2010, Boxer began playing high level StarCraft 2 games against other pro gamers as Terran under the username "ManofOneway," but has switched to SlayerSBoxeR since he announced his return. He is now playing StarCraft 2 at a professional level and has made it to the Round of 4 in GSL (GOMTV Global StarCraft II League) Open Season 2, where he lost 0–4 to NesTea. However, he would not fare as well in following seasons, even dropping to Code A (the lower GSL League) in March 2011.
He formed the StarCraft 2 clan SlayerS (sls) in November 2010. As well, he is featured in a documentary TV show, named Boxer's Wings, about his StarCraft career and his transition from StarCraft: Brood War to StarCraft 2.
In March 2011, SlayerSBoxer's newly formed "SlayerS Clan" StarCraft 2 team won the GOMTV Global StarCraft II Team League, just months after their formation, defeating teams Startale, and oGs (Old Generations). They would go on to defeat IM (Incredible Miracle) by 5 games to 4 in a best-of-9 series. The same month SlayerSBoxer was also one of the few Koreans drafted for the North American Star League, a new tournament outside of the Korean StarCraft scene, with a prize pool of $100,000. "SlayerS Clan" repeated the feat by winning the next GOMTV Global StarCraft II Team League in May 2011, beating the team "MVP" in the final and proving to be a very consistent team.
SlayerSBoxeR returned to the most prestigious Code S tournament on December 22, 2011, for the GSL January 2012 tournament.
It was announced on January 25, 2012 that SlayerSBoxeR would be appointed the head playing coach for the team SlayerS. This would be the first time he would be part of the coaching staff for any team in his 13 year long career.
On April 16, 2012, it was announced that BoxeR would be forfeiting his Code A match due to health concerns. His shoulder has been hurting for over a year and a half and it had gotten to the point where he could not play more than five games a day. As a result he has decided to take a break from progaming to rehabilitate, assuring that his break is only temporary.
On August 16, 2012, It was announced that BoxeR would be leaving SlayerS and re-joining SKT1 as a StarCraft 2 team coach.
Lim Yo-Hwan is currently married to South Korean actress and media personality Kim Ka Yeon, also known as SlayerS`Jessica. He also wrote an autobiography entitled Crazy As Me in 2004.
In addition to team sponsors with SKT1 and SlayerS, BoxeR has been an individual endorser for the likes of LG and Intel. In 2011, after becoming an Intel spokesman, he guest-starred in the Visual Life commercial series starring Girls' Generation (SNSD) that featured him playing TvZ (Terran Vs. Zerg) against Im Yoona at the top-floor cafeteria of the SM Entertainment office in Chungdamdong to promote the gaming-related capability of Intel computers. It was confirmed that the two exchanged autographs, including Yoona signing BoxeR's keyboard. The commercial was pulled from Korean TV when Intel execs realized that their gameplay footage was a replay of one of BoxeR's earlier televised matches and that the eSports community would know it, but it is still on YouTube: Visual Life - Girls' Generation for Intel - Gaming - Yoona feat. Lim Yo-Hwan (Korean, English subtitles) 
- Most wins on televised matches (500)
- Semi-Finalist (4th place) in StarCraft 2 GSL Season 2 2010
- Two times World Cyber Games champion (2001, 2002 as gonia119_kr)
- First player to achieve 100 wins in Ongamenet Starleagues (OSL)
- First player to win more than one OSL (Hanbitsoft 2001, Coca Cola 2001), and the first to win two consecutive OSLs
- First player to make the OSL finals three times in a row
- Longest time to hold first place in KeSPA (Korea e-Sports Players Association) rankings (17 months)
- Earned an income of over $US 300,000 (annual)
- Won the first KPGA Tour (now MBC starleague)
- Has finished 2nd in Ongamenet Starleague 4 times (2001 SKY, 2002 SKY, 2004 EVER, 2005 SO1)
- Finished 2nd in the first KT-KTF Premiere league
- KPGA MBC Starleague Champion February 2002 to March 2002
- Signed with "Team Razer" February 14, 2011
- Leader of SlayerS Clan, the championship team of GSTL March and GSTL May 2011
- SlayerS Clan homepage (Korean)
-  Teamliquid Player Information
- mtv.com – Playa Rater: The 10 Most Influential Video Gamers Of All Time
- http://www.teamliquid.net/forum/viewmessage.php?topic_id=157713 Report on Boxer / ManofOneway on teamliquid.net
- Shields, Duncan (9 October 2010). "BoxeR officially switches to SC2". SK Gaming. Retrieved 10 October 2010.
- BoxeR appointed playing head coach of SlayerS (Translated)
- BoxeR forfeits his Code A match (Translated)
- Girls' Generation Visual Life Filming Details (Soshified.com)
- Boxer international fansite
- Overview of Boxer's archievements and games played
- Crazy As Me Translation
- BoxeR's fan cafe (Korean)
- Gamer is royalty in S. Korea Article, about BoxeR after joining AirForce
- How to Earn Six Figures by Playing Videogames Article about BoxeR
- The Boys with the Flying Fingers. South Korea Turns PC Gaming into a Spectator Sport Article, mainly on Lim Yo-Hwan
- Interview with Lim Yo-Hwan
- Lim Yo Hwan -- The BoxeR
- Lim-Yo-Hwan :: Inside StarCraft
- Lim Yo Hwan on SC2 Earnings
- Lim Yo Hwan on e-Sports Earnings
- Boxer at Liquipedia (The Team Liquid Wiki - SC2 Section)