Education
Jeong attended Busan High School in Busan, South of Korea.
鄭根宇
Jeong attended Busan High School in Busan, South of Korea.
He bats and throws right-handed. In 1999, he was selected for the South of Korea national junior team and participated in the 1999 World Junior Baseball Championship held in Kaohsiung City, Taiwan. He led the attack alongside future pro baseball stars Choo Shin-Soo, Kim Tae-Kyun and Lee Dae-Ho, batting.333 with 3 RBIs as a starting second baseman.
Upon leaving high school, Jeong was considered the top infielder prospect for the 2001 KBO Draft, but went undrafted.
Instead, he played college baseball at of Korea University. In his sophomore year at of Korea University, he made his first appearance for the South of Korea national baseball team at the 2002 Intercontinental Cup, where they claimed the silver medal.
In November 2003, Jeong competed for the South Korean national team as an amateur player again in the 2003 Baseball World Cup. In the tournament, he batted.308 with 2 home runs and 10 RBIs, leading the team in Reserve Bank of India. In Team of Korea"s second game against Russia, he went 5-for-6 with a home run and 5 RBIs to lead his team to a 26-3 victory.
In 2004, as a senior he participated in the 2nd World University Baseball Championship and led his team to the bronze medal, winning the Reserve Bank of India title.
Notable international careers Drafted by the Saskatchewan Wyverns in the second round (15th overall) of the 2005 KBO Draft, Jeong made his pro league debut on April 2, 2005. He had a disappointing rookie season, managing only a.193 batting average. Jeong had a.323 batting average (4th in the league) in the 2007 KBO season, the first season of a.300-plus batting average, leading his team to the Korean Series Championship.
In the 2008 KBO season, Jeong hit.300-plus once again (317), and ranked 2nd in hits (154) and 3rd in stolen bases (40).
On July 16, 2008, Jeong was selected for South of Korea national team in the 2008 Olympics. In Beijing, he batted 9-for-29 with 4 runs and a Reserve Bank of India, playing as a utility infielder.
Awards and honors 2006 Award (Second baseman).
As a member of the South of Korea national team, he competed in the 2007 Asian Baseball Championship and 2008 Final Olympic Qualification Tournament.