In June 2004, Park led his team to win the 59th Blue Dragon Flag National High School Baseball Championship, ranked first in runs with 10.

In August 2004, Park was selected for the South Korean under-18 national team and participated in the World Junior Baseball Championship held in Taiwan.

After the 2006 season, Park joined the Korea Armed Forces Athletic Corps Baseball Team to serve a two-year military service.

Although he came back to the Twins after being discharged from the military duty in early 2009, Park continued to hit below the Mendoza line (.218 in 2009 and .188 in 2010), mostly serving as the backup to first baseman Lee Taek-keun.

[1] The Minnesota Twins of Major League Baseball won the rights to negotiate with Park during the 2015–16 offseason after placing a $12.85 million bid through the posting system.

[3] After batting .191 in 62 games for the Twins, he was optioned to the Rochester Red Wings of the Triple-A International League and was never called back up.

[5] On March 30, Park cleared waivers and was sent outright to Triple-A Rochester, and was subsequently reassigned to Minor League camp as well.