Known for particularly amazing probe and dragoon control and for being one of The Three Kings of Protoss, Park Yong Wook is one of the great Protoss users in StarCraft history. Before his contract with Hanbit, Yong Wook was already a well established player. He had already participated in various KBK tournaments but did not turn pro until much later due to his education. So when Yong Wook made his first OSL in the 2001 Hanbitsoft OSL he was doubling as a part-time gamer and full-time student. Given his skill and how far he had advanced into the tournament, his teacher (who had taugh him during his time in KBK tournaments) realized his potential and gave him time off to practice for his match against BoxeR. Despite finishing 4th in he OSL, he did remarkably well for a full-time student.

Obviously, when he turned full-time pro in the late half of 2002 Hanbit readily took him aboard. But to do so, meant that he had to turn his back on his parents. They were pushing for him to continue in his education, or be sent to the army and did not approve of his career. Nevertheless he went to Hanbit and lived his dream. Yong Wook would follow BoxeR to Orion after Hanbit after he decided to leave he team. The manager for Orion, Joo Hoon, talked to Yong Wook before recruiting him, and upon hearing the issues with his parent went to sought it out. Thus, Joo Hoon organized a conference in which he persuaded them to let him play with their blessing, they agreed.

About this time he earned the nickname "Devil Toss". Popular myth would have you believe that the nickname stems from Yong Wook being the anti-hero to Reach. However, the real root of the nickname came from two things. Firstly, when he was little he would always root for the bad guy over the good guy; he would always try to be the opposite. And secondly: Well let’s see… it probably started around the Hanbit Tourney… I think it was Jong Ill-Hoon who said it first I guess that’s how nicknames start usually. At first it was weird but after a while I wanted it to have a strong impression so I worked harder. -Park Yong Wook

In the MyCube OSL, Yong Wook would show an impressive semifinal against Junwi defeating him 3-0, and then go on to defeat Nal_rA in the final 3-1. This impressive MyCube performance solidified Yong Wook's claim as the third Protoss King. Defeating Nal_rA here would start the fan circles dreaming up the "rA > Reach > Kingdom > rA" triangle. This victory is also noted by Yong Wook as the highlight of his career, as he got to win in front of his parents. After the expected OSL Curse slump, Yong Wook bounced back in 2004 blitzing his group 3-0 in the Gillette OSL while simultaneously reaching the winner bracket semi-finals in 2004 SPRIS MSL. While just losing out to Silent_Control 1-2 in the Round of 8 in OSL, he stormed through MSL; losing to iloveoov in the winner's final, defeating Nal_rA in the loser's final, and losing again to oov in the Grand Final 3-2. Yong Wook has remarked that of all terran players, iloveoov is the hardest for him to play against.

During WCG Korea 2004, Yong Wook lost 1-2 to July but on Korhal of Ceres earned himself an unpimpest play award for performing a proxy 2 gate zealot rush, only to trap his zealots in with his gateways. This move, dubbed 'Kingdumb', has gone down in WCG and Starcraft history as one of the worst rushes ever preformed. Yong Wook was invited to participate in KT-KTF 2004 and preformed weakly, going 4-7 overall. In 2004 You Are the Golf King MSL, Yong Wook would showcase another impressive performance. Notably against Rage on Arizona where he defeated a fully operational base with 2 dragoons (he had lost his main thanks to a zealot rush). This display of micro is one of the most impressive demonstrations of control recorded on TV and has been immortalized because of it. However, he did not go too far in the tournament losing in the Loser Bracket Ro8-2. Yong Wook made appearances in Starleagues during 2005, but did not get out of the group stages. However, he did play a vital role in SK Telecom T1's 2005 Proleague victory. Aiding his team in winning both Round 1, Round 2 and the Grand Finals in 2005. He would also aid in the the 2006 Proleague Season 1 victory over MBCgame Hero.

Yong Wook also participated in both 2006 Pringles MSL Season 1 and 2006 Pringles MSL Season 2. In Pringles 1, he made an impressive showing; including a Dark Archon mind control rush against July on 815 III, and demolishing old-time barrier iloveoov Sung 2-1 and the Emperor himself, BoxeR, on his way to the semi-finals. Despite losing to Nal_rA 3-0, it was an impressive showing nonetheless. In Pringles 2 he again made an impressive showing. Against NaDa on Blitz he showed some uncharacteristic insane macro, which completely destroyed his opponent. He eventually lost out to Silver in the quarter finals.

Yong Wook assumed the captaincy of SKT after BoxeR departed for the army. When Kingdom retired he became a coach for SKT and later a commentator for OnGameNet. He hosts a show on OGN called "Mr.Yong's Manner Pylon", and participates in the "After Talk" show alongside Kim Tae-Hyung (Kim Carrier), Uhm Jaegyung and Nal_rA