Kang began playing baseball in elementary school but had to move between schools several times as a youth due to "a family issue" which he told Ilgan Sports was "hard to talk about."[1]
Kang played high school baseball as a pitcher, catcher and designated hitter at Seoul High School where, as a freshman, he was the first player to hit a home run at Gocheok Sky Dome. In 2017, he led Seoul to a high school baseball championship and was named the most valuable player of the tournament.[2] Kang's accomplishments as a high schooler brought him significant media attention.[1][2][3] After high school, Kang decided to enter the KBO against the wishes of his father who wanted him to try for "a bigger stage."[1]
Professional career
Kang was selected with the first overall pick in the 2017 KBO draft by the KT Wiz. He made his KBO debut at 18 years old and hit a home run against Héctor Noesí in the first plate appearance of his career.[4] As a professional, he stopped pitching and catching and transitioned to the field.[2] Kang set the rookie record with 29 home runs en route to winning the KBO League Rookie of the Year Award.[5] He pitched in the 2018 KBO All-Star Game and reached speeds of 150 kilometres per hour (93.2 mph). Following the season, his salary was more than tripled to ₩120 million (equivalent to $102,973 in 2019), setting a record for a sophomore player.[2]
In June 2019, Kang underwent surgery on his hand after cutting it on a piece of metal while making a catch in foul territory at Busan Sajik Baseball Stadium.[6] He sat out for the entire month of July due to the injury but was voted a starter on the all-star team nonetheless.[1][7]
Kang missed three weeks of the 2020 season after hurting his wrist while sliding on defense.[3] Fans voted Kang to the all-star team again in 2020 although the game did not take place due to the COVID-19 pandemic.[8]
At the halfway point of the 2021 season, Kang had a batting average of .395 which led the league by 47 points.[9] He reached base in eight consecutive plate appearances in Games 1 and 2 of the 2021 Korean Series, tying a Korean Series record.[10]
