|Romanized Name:||Jung Yoon Jong|
|Birth:||August 14, 1992|
|Team:||SK Telecom T1|
|Alternate IDs:||By.Sun, By.Rain|
|WCS Rank (Points):||#12 (625 points)|
2010-10-01 - Present
Jung "Rain" Yoon Jong, also known as "By.Sun", is a professional Protoss player from South Korea who currently plays for SK Telecom T1. Once a promising Brood War progamer who made a name for himself during the last seasons of the BW Proleague, Rain switched to StarCraft II in May 2012 along with the other players affiliated with KeSPA. He quickly developed into being the most successful of those players, as he delivered great performances in both the 2012 OSL Season 1 and the 2012 GSL Season 4.
Rain (who was then known as Sun) began his career as a progamer quite late in the Brood War era, playing his first official match in April 2009 in individual league preliminaries. According to him, becoming a progamer was never his intention, as he just played casually (instead of studying) and participated in some tournaments, until he was recruited as a professional player by MBCGame HERO. Rain never managed to qualify for either the OnGameNet Starleague or the MBCGame StarCraft League throughout his Brood War career, only appearing in a few minor individual leagues. He realised noteworthy results in Proleague though, achieving a good 15-9 record in the 2010-2011 Shinhan Bank Proleague for team SK Telecom T1. His crowning achievement took place in the STX Masters 2011, as he managed to all-kill Hwaseung OZ in the finals (defeating sHy, Jaedong, Killer, and HiyA).
 Wings of Liberty
 First Steps on StarCraft II (May — Aug 2012)
Rain played his first official StarCraft II match on May 20th 2012, in the opening match of the hybrid 2011-2012 Proleague Season 2, as SK Telecom T1 faced Team 8. He defeated Jaedong in this encounter, and went on to appear in the majority of the matches played by SK Telecom T1 in the league, being used as the team's ace player. On July 19th, Rain attended the 2012 OSL Season 1 preliminaries, the first season of the prestigious league dedicated to StarCraft II, and successfully earned a spot in the tournament, a feat he had never achieved during his short career as a Brood War progamer. A few days later, he qualified for the OSL main event after placing second in his group in the KeSPA players dual tournament (defeating Bogus and Soulkey and losing to Flying), hence making it to the main tournament. After these matches, he expressed his delight of getting to play on stage for the OSL final rounds, which he described as being his long time dream. He was less successful in the World Cyber Games 2012 KeSPA qualifiers, narrowly losing to ZerO in the finals of his group.
On August 6th, Rain made his debut in the 2012 World Championship Series South Korea where he was one of the six KeSPA invites, and was soundly defeated by Curious (whom was the first player non-affiliated to KeSPA he ever faced), therefore dropping in the loser's bracket. This proved to be a temporary setback though, as Rain made his way through it at the expense of horror, the former MLG champion and GSL finalist Leenock, the Brood War legend Jaedong, and took revenge against Curious by eliminating him. A walkover against his next opponent sent him to the loser's semifinals, where he met Creator. The latter player eventually took the upper hand, hence ending Rain's run in the championship one round away from the top four (and second best KeSPA player behind RorO, who placed fourth), which still awarded him a seed in the WCS Asia Finals. A week later, on September 1st, GOMTV announced that Rain would be, along with Jaedong, one of the two players affiliated to the KeSPA to be seeded in the 2012 GSL Season 4 Code S (since the GSL season 4 was the first one that KeSPA players were allowed to compete in, Rain and Jaedong became the first of them to play in Code S). The same day, Rain went to play in the first round of the 2011-2012 Proleague Season 2 Playoffs. He had been a major contributor of team SK Telecom T1's qualification for the postseason, with 13 wins and 6 losses in the StarCraft II games (as well as 4 wins and 3 losses in Brood War games). He was unable to make the difference for his team in the playoffs though, losing twice to herO during the second round against team CJ Entus (SKT ultimately had to settle with the third place).
 Already a Championship Contender (Sep 2012 — March 2013)
Rain found more success in individual leagues in early September, as he cemented his reputation as the best KeSPA player at the time by advancing in both the OSL Season 1 and the GSL Season 4 Code S. In the latter tournament, he placed second in his round of 32 group, inflicting a severe cumulated 4-0 to ByuN (who had reached the semifinals of the previous season) and narrowly losing to Happy. Rain delivered an impressive performance in the OSL round of 16, topping a group in which he was the underdog with three victories over the StarCraft II veterans DongRaeGu and MarineKing and over the reigning, double OSL champion (in Brood War) JangBi. At the end of the month, his fame was taken to a new level as he proved himself to be not only the best player affiliated to KeSPA at the moment, but also a true championship contender running for an unprecedented double Royal Road achievement. The Protoss player indeed emerged on top of his GSL round of 16 group as he defeated TaeJa and Polt, both renowned for their mastery of the Terran-versus-Protoss match-up.
On September 25th, he dominated PartinG, then dubbed as one of the best Protoss player in the world, beating him 3-1 in the OSL quarterfinals. Now the last player still in the race in both leagues, Rain went on to crush HerO 3-0 in the GSL quarterfinals on October 3rd, hence reaching the final four of the GSL as well. A week later, Rain played his OSL semifinals against Last, who had defeated Flash in the previous round. At first, he was completely overwhelmed by his Terran opponent, who soon led 3-0 and stood one game away from securing the best of seven series. However, Rain achieved one of the most spectacular turn of events in the history of the OSL, winning the four last games and earning his spot in the finals. The next day, he was denied a place in the GSL finals by Mvp. They engaged in a back and forth series and eventually found themselves tied 2-2 in that best of five. Rain's fast expand with Dark Templars was countered by a perfectly timed missile turret in the decisive game (Mvp said afterward that he had a feeling Rain was up to something), and he slowly fell behind in term of economy as his cloaked units were unable to cripple the Terran player, whom ultimately attacked with a stronger army and won the match, hence depriving Rain of the opportunity to play in another finals.
Still waiting to know whom he would face in the OSL finals between MC and DongRaeGu, Rain headed to Shanghai four days after his defeat at the hands of Mvp in the GSL semifinals in order to compete in the World Championship Series Asia Finals. For his first event played outside of South Korea, Rain began by flawlessly defeating the lesser-known Terran player Nilon as well as the Zerg veterans F91 and TooDming. Starting from the winner's bracket semifinals, there were only Protoss players remaining in the competition, which could have meant the doom of Rain's run as the Protoss-versus-Protoss match-up was regarded as the one he was the less confident in at the time. He nonetheless made it plain that his in-game skills were still improving at a rapid pace, as he emerged victorious of his matches against CJ Entus's herO, Team Liquid's HerO, and ultimately PartinG in the grand finals, therefore winning a premier event roughly four months after his switch to StarCraft II. Now the reigning Asian champion, Rain was awarded $24,000 (his largest prize to date) as well as a spot in the upcoming 2012 Battle.net World Championship. Throughout these Asian Finals, Rain had achieved an outstanding overall score of 12-1, herO being the only player who managed to take a game of him.
Back in Korea, Rain played against DongRaeGu in the OSL finals in Busan. In the first game on Antiga Shipyard, the eSF player DongRaeGu hive rushed into a deadly Brood Lord-Infestor composition. Despite destroying many Zerg bases, Rain could not overcome the sheer power of his opponent's army, and dropped the first map. In the second game, Rain managed to get a warp prism into DongRaeGu's base and to kill off the crucial Greater Spire, allowing Rain to delay the production of Brood Lords. This gave Rain a timing to get his army up and running before the Zerg player, and thus was able to easily dismantle the forces that DongRaeGu managed to set up to take game 2. In the third game on Ohana, Rain became a master of illusions, initially looking like he was going for an Immortal all-in. In response, DongRaeGu made Roaches and Lings only to discover that Rain fooled him, and took a quick third instead. When Rain finally attacked with his Immortal-Stalker composition, DongRaeGu had no answer for it, and was fooled once again as he made Corruptors after seeing a hallucinated Colossus. In the fourth game on Daybreak, Rain went once again for an Immortal-Stalker army and although DongRaeGu saw it coming and put up Spine Crawlers, it was not enough, having to concede the third game in a row. In the fifth and final game, Rain went for Dark Templars as DongRaeGu went for a Muta-Ling combination. With an epic four-pronged DT attack, DongRaeGu struggled to hold off the map harass, causing his macro to slip while Rain continued to build up a force. With a blink Stalker army, Rain easily caught DongRaeGu's army and force the Zerg player to GG for the fourth game in a row. Finishing the night with a score of 4-1, Rain ended up winning the first SC2 OSL and also protect the OSL throne from the eSports Federation for at least another season.
It was announced on October 29th, 2012 that Rain will be playing in the Open Bracket of MLG Dallas in his North American debut. This meant that Rain would be unable to participate in his Code S match due to a scheduling conflict therefore his opponents were all given walkovers, and Rain automatically placed last in his group, going down to Code A. As a participant in the Open Bracket, Rain played through the brutal gauntlet, beating the American Zergs Goswser, Sheth and Suppy to make it into group play. Despite not dropping a single game going through the Open Bracket, Rain faced two-time MLG champion Leenock in the first round in group play, losing 0-2. In the lower bracket, he played against ViBE, Polt and hyvaa, beating them all with a resounding 2-0 to once again play against Leenock in an extended series. Ultimately, Leenock ended up winning with a final score of 4-2, dropping Rain into Loser's Round 5 of the Championship Bracket. On Championship Sunday, Rain played his first game against his teammate soO, winning with a score of 2-1. Following that, Rain was matched against NaNiwa, the last non-Korean player, in a PvP. With two long macro games, Rain proved too much for the Swedish hero to handle, and won with a score of 2-0. With that win, Rain faced Team Liquid's TaeJa in the next round, who was quickly taken apart by Rain with a score of 2-0. Finally, Rain's MLG debut was stopped by Bomber after an epic series. Falling with a score of 2-0, Rain ended up 5th/6th in his first MLG.
Since Rain won the 2012 World Championship Series Asia Finals, he returned to Shanghai to participate in the 2012 Battle.net World Championship on the 17th and 18th of November. Being placed in Group D with the non-Koreans BabyKnight, State and MaFia, it was expected that Rain would dominate his group and place first. However, BabyKnight surprisingly ended up defeating Rain 2-0 despite being considered one of the best PvP players in the world. In the playoff bracket, Rain showed off his PvZ as he took out the non-Korean Zergs IdrA and KiLLeR, but then ended up losing to Creator in another PvP. In the third place match, Rain beat another non-Korean Zerg in Sen with a score of 3-0 to secure third place in the tournament with a prize of $16,000.
In February Rain would play in MLG Showdowns which allowed Rain to qualify for 2013 MLG Winter Championship, his opponent was Flying who he defeated 3-2. Rain played in the first 2013 Global StarCraft II League Season 1 of the year. He started at the bottom of Code A where he faced Shine, whom he dispatched 2-0 and advanced to the next round. In the next round he played Terran player KeeN, and once again he defeated his opponent 2-0. In the final Round of Code A he played Flash, and while many expected Rain to beat him he lost 0-2 and was sent to the Up & Downs.
 Heart of the Swarm
On March 15th, Rain would play in his first Heart Of The Swarm tournament which was 2013 MLG Winter Championship, he qualified for this tournament back in February. In the Round of 32 he faced former GSL champion Seed, Rain showed his superior PvP skills be defeating the former champion 3-0. In the Round of 16 he played yet another former GSL Champion in jjakji. jjakji managed to prove a tougher fight for Rain as he managed to win with a close 3-2 score. In the Round of 8, his opponent was none other than INnoVation who defeated Rain in the past but Rain has also taken games off of him so it should have been a close match but it wasn't, Innovation 3-0'ed Rain and knocked him out of the tournament. Rain did not participate in the 2013 WCS Season 1 Korea GSL Up & Down's like he was supposed to as he was seeded into Code S. On April 17 2013 Rain played in Group F in Code S, his opponents were GuMiho, INnoVation, and HyuN. Rain managed to beat Innovation 2-1, he then faced GuMiho who upset him 2-0, in the final match he played against Innovation for the 2nd spot to advance, Innovation was able to win 2-0 knocking Rain out of Code S.
After being knocked out, Rain played in the 2013 WCS Season 1 Korea GSL Challenger League, he was placed into the Round of 32 and his opponent was YongHwa whom he defeated. Rain's next opponent was ByuN who suprisingly took the first map but then lost the next 2 allowing Rain to advance into Code S for next season.
The next season of WCS 2013 WCS Season 2 Korea OSL started, Rain was placed into Group H with Bomber whom he had faced in the past, KeeN who he also played before , and Hurricane who he hadn't played. Rain defeated Keen, and then Bomber to advance to the Round of 16. The Round of 16 came around and he was placed in a group with hyvaa, First, and fellow teammate FanTaSy. Rain defeated hyvaa, and Fantasy but lost to First, due to how the situation in the group turned out tiebreakers had to take place. Rain managed to defeat First but lost to hyvaa, First would beat hyvaa, Rain would beat First, and then finally Rain and First beat hyvaa and advanced together. Rain was placed into the Round of 8 and played SuperNova who no one thought could put up a fight but he did barely losing out 2-3 to Rain. In the Round of 4 Rain would play Bomber easily dismantling him 4-1. Now before Rain played his match against Bomber it was already decided his opponent would be Maru as he defeated INnoVation 4-0 a few days earlier. Coming into the finals many favored Rain to take the finals, and it was looking that way with Rain going 2-0 in the first 2 games, however the next 4 games all went to the Maru, meaning Rain would lose 2-4 and him placing 2nd, Rain will be placed into the next WCS season which is the 2013 WCS Season 3 Korea GSL.
- Rain was the most successful player affiliated to the KeSPA during the first individual leagues in which KeSPA players participated in Starcraft 2. He is indeed, among them, the one who went the farthest in both the OSL Season 1 (which he won) and the GSL Season 4 Code S (where he reached the semifinals), which were the two of the four first individual leagues where KeSPA players were allowed to attend. In the third league of the kind, the 2012 World Championship Series, he placed fifth/sixth overall and second KeSPA player (behind RorO, fourth overall) in the Korea Nationals and won the Asia Finals.
- Rain is the first KeSPA player to do well in the GOMTV Global StarCraft II League making the semifinals where he lost to Mvp 2-3. Bogus ,Soulkey and RorO have since matched this feat.
|In Premier Tournaments|
|2014-02-16||3 - 4th||IEM Season VIII - Cologne||2 : 3||Polt||$2,000|
|2013-12-08||1st||Hot6ix Cup||4 : 2||Soulkey||$18,923|
|2013-08-10||2nd||2013 WCS Season 2 Korea OSL||2 : 4||Maru||$12,000|
|2012-11-10||3rd||2012 Battle.net World Championship||3 : 0||Sen||$16,000|
|2012-10-27||1st||2012 OnGameNet Starleague Season 1||4 : 1||DongRaeGu||$36,000|
|2012-10-14||1st||2012 World Championship Series: Asia Finals||2 : 0||PartinG||$24,000|
|2012-10-10||3 - 4th||2012 Global StarCraft II League Season 4||2 : 3||Mvp||$4,300|
|Complete Results in any Tournament|
|StarCraft II World Championship Series: Asia Continental Champion|
| 2012 StarCraft II World Championship Series: Asia Continental
14 October 2012 – Present
| 2012 Tving OSL
| 2012 Auction All-Kill OnGameNet Starleague
27 October 2012 – 10 August 2013
| 2013 WCS Season 2 Korea OSL|
|GOMeXP Cup Champion|
| 2012 GSL Blizzard Cup
| 2013 GSL Hot6ix Cup
8 December 2013 – Present
 WoL Matches
- vs Creator on Entombed Valley (2012 WCS Korea Nationals Losers Bracket Round 6)
- vs Stork on Ohana (2011-2012 Proleague Season 2, Round 3 - Week 2 SK Telecom T1 vs Samsung KHAN)
- vs TaeJa (2012 GSL Season 4 Ro16 Group A)
- vs ByuN (2012 GSL Season 4 Ro32 Group D)
- vs MarineKing on Daybreak (2012 OSL Season 1 Ro16 Group A)
- vs Leenock on Cloud Kingdom (2012 WCS Korea Nationals Losers Bracket Round 2)
- vs Acacia on Antiga Shipyard (2011-2012 Proleague Season 2, Round 2 - Week 4 SK Telecom T1 vs KT Rolster)
- 2014-02-06 | 2014 GSL Season 1 Code S Ro32 Groups A, B, C, D, E, F G, H Winners by inven eSports (trans. )
- 2013-12-31 | 2014 SPL Round 1 Week 1 SK Telecom T1 vs MVP Winner by This Is Game
- 2013-12-08 | 2013 Hot6ix Cup Grand Finals Winner by This Is Game at Hot6ix Cup (trans. )
- 2013-12-04 | 2013 Hot6ix Cup Ro8 Matches Winners by This Is Game at Hot6ix Cup (trans. )
- 2013-09-25 | 2013 WCS Korea Season 3 Premier League Ro16 Group B Winners by This Is Game
- 2013-07-31 | 2013 WCS Korea Season 2 Premier League Ro4 Winners by This Is Game
- 2013-07-26 | 2013 WCS Korea Season 2 Premier League Ro8 Winners by This Is Game
- 2013-07-05 | 2013 WCS Korea Season 2 Premier League Ro16 Day 2 Winners by Fomos.kr
- 2013-05-22 | 2013 WCS Korea Season 1 Challenger League Round 3 Day 2 Winners by This Is Game
- 2013-02-20 | 2013 GSL Season 1 Code A Ro32 Day 3 Winners by This Is Game
- 2013-02-12 | 2013 GSL Season 1 Code A Ro48 Day 3 Winners by This Is Game
- 2013-01-30 | 2013 GSL Season 1 Code A Qualifiers Day 1 Winners by This Is Game
- 2012-12-31 | SPL Season 1 Round 1 EG-TL vs SK Telecom T1 Winner by Daily eSports
- 2012-12-08 | SPL Season 1 Round 1 STX SouL vs SK Telecom T1 Winner by This Is Game
- 2012-11-18 | Battle.net World Championship Day 1 Interviews by This Is Game at 2012 Battle.net World Championships
- 2012-11-14 | From Home to Hero - Interview with Rain by Blizzard Korea (trans. )
- 2012-10-27 | Auction OSL Grand Finals Winner Interview by This Is Game
- 2012-10-15 | WCS Asia 2012 Winner Interview by This Is Game at WCS Asia 2012
- 2012-10-09 | 2012 Auction OSL Semifinals Day 1 Winner by This Is Game
- 2012-10-06 | GSL 2012 Season 4 Code S Ro8 Day 1 Winners Video Interview by ESFIWorld
- 2012-10-03 | GSL 2012 Season 4 Code S Ro8 Day 1 Winners Video Interview by Artosis of GOMTV (trans. )
- 2012-10-03 | GSL 2012 Season 4 Code S Ro8 Day 1 Winners by This Is Game
- 2012-09-25 | 2012 Auction OSL Quarterfinals Day 1 Winners by This Is Game
- 2012-09-20 | GSL 2012 Season 4 Code S Ro16 Group A Winners Video Interview by Artosis of GOMTV (trans. )
- 2012-09-20 | GSL 2012 Season 4 Code S Ro16 Group A Winners by This Is Game
- 2012-09-11 | 2012 Auction OSL Ro16 Day 5 Winners by This Is Game
- 2012-09-07 | GSL 2012 Season 4 Code S Ro32 Group D Winners Video Interview by Artosis of GOMTV (trans. )
- 2012-09-07 | GSL 2012 Season 4 Code S Ro32 Group D Winners by This Is Game
- 2012-09-05 | 2012 Auction OSL Ro16 Day 4 Winners by This Is Game
- 2012-08-30 | 2012 Auction OSL Ro16 Day 2 Winners by This Is Game
- 2012-08-23 | WCS Korea 2012 Losers' Round 4 Winners by This Is Game at WCS Korea 2012
- 2012-08-21 | WCS Korea 2012 Winners' Round 3 Winners by This Is Game at WCS Korea 2012
- 2012-08-17 | WCS Korea 2012 Losers' Round 2 Day 2 Winners by This Is Game at WCS Korea 2012
- 2012-08-16 | WCS Korea 2012 Losers' Round 1 Day 2 Winners by This Is Game at WCS Korea 2012
- 2012-08-01 | 2012 Auction OSL KeSPA Dual Tournament Group A by This Is Game
- 2012-07-20 | 2012 Auction OSL KeSPA Preliminaries by This Is Game
- 2012-07-19 | 2012 Auction OSL KeSPA Preliminaries Interview by Moletrap (trans. )
- ↑ By.Sun's games record. TLPD.
- ↑ "Rain heartbroken over end of Brood War, practicing very hard on StarCraft II". ESFIWorld.com. October 6th 2012.
- ↑ By.Sun's record in the 2010-2011 Shinhan Bank Proleague. TLPD.
- ↑ By.Sun's record in the STX Masters 2011. TLPD.
- ↑ "[Interview] OSL Group A KeSPA Dual Tournament". TeamLiquid.net. August 1st 2012.
- ↑ "GSL Season 4 Information". GOMTV.net. September 1st 2012. TeamLiquid.net thread
- ↑ Rain's records in the 2011-2012 Proleague Season 2 Season in StarCraft II. TLPD.
- ↑ Rain's records in the 2011-2012 Proleague Season 2 Season in Brood War. TLPD.
- ↑ "[Code S] Ro32 Group D Recap". TeamLiquid.net. September 7th 2012.
- ↑ 10.0 10.1 "Code S Ro16: Group A Recap". TeamLiquid.net. September 20th 2012.
- ↑ "[Code S] Semi-Finals Recap (S4)". TeamLiquid.net. October 11th 2012.
- ↑ "WCS Asia: Meet the Koreans". TeamLiquid.net. October 13th 2012.
- ↑ MLG's Adam Apicella's Twitter: "Rain will be playing in the open bracket last minute"
- ↑ Rain forfeits GSL Code S spot in favor of MLG.