He was a member of their minor league system for four years before making Cleveland's Opening Day roster in 2022, quickly becoming a part of their starting lineup, playing all three outfield positions.

[7] He batted leadoff ahead of Nick Madrigal, Trevor Larnach and Adley Rutschman and helped lead the Beavers to a national championship in the 2018 College World Series.

[8] After his junior year, he was selected by the Cleveland Indians in the fifth round of the 2018 Major League Baseball draft.

[13] Kwan began the 2021 season with the Akron RubberDucks and was promoted to the Columbus Clippers in late August.

[18] He made his MLB debut on Opening Day as the starting right fielder on April 7, and recorded his first major league hit off Kansas City Royals reliever Scott Barlow.

[28] He was named a finalist for the American League Rookie of the Year Award, alongside Adley Rutschman and Julio Rodríguez.

[32] In 2024, Kwan batted .292/.368/.425 with 14 home runs and 83 RBIs, with the lowest maximum exit velocity in MLB (105.6 mph).

[35] He was nearly recruited to play for Team Japan in international competition 2023 World Baseball Classic, but was found to be ineligible.