Takahara was born in
Mishima on 4 June 1979. After graduating from high school, he joined
Júbilo Iwata in 1998. In 1998, the club won
J.League Cup and he was selected New Hero awards. In 1999, the club won
J1 League and
Asian Club Championship. The club also reached second place at the
1999–2000 and
2000–01 Asian Club Championships. In August 2001, he moved to
Boca Juniors on loan. He became the first Japanese player to play in the
Argentine Primera División. In 2002, he returned to Júbilo Iwata. The club went on to win the
2002 J.League Division 1, while Takahara became the top scorer and was elected Most Valuable Player of the year. After the 2002 season, Takahara moved to
Hamburger SV. He made his
Bundesliga debut on in January 2003 in a 2–2 draw against
Hannover 96, thereby becoming the third Japanese footballer to play in Bundesliga after
Yasuhiko Okudera and
Kazuo Ozaki. On 3 December 2006, he scored his first
hat-trick in the Bundesliga in a match against
Alemannia Aachen. In January 2008 he moved to
Urawa Reds for a transfer fee of around ¥180 million (around $1.7 million). Due to a disagreement with the style of coach
Volker Finke, who had taken over as coach of Urawa in 2009, Takahara was leased to
Suwon Samsung Bluewings of the South Korean
K League 1 in July of the following year. On 31 July 2010, he made his debut as a substitute for the 39th minute of the match against
Gwangju FC. On 29 August, he scored a goal in the 39th minute of the second half of the game against
FC Seoul. He helped victorious game 4-2 and won the MVP in this game. In 2011, he returned to Japan and signed with
Shimizu S-Pulse. After that, he played for
J2 League club
Tokyo Verdy (2013–14) and
J3 League club
SC Sagamihara (2014–15). In December 2015, along with Japanese
judoka
Tadahiro Nomura, Takahara founded
Okinawa SV. He served not only as club's president, but also played and captained the club. On 27 November 2022, he brought his club a first-time promotion for the
Japan Football League, after a 4–0 over FC Kariya led them to finish as runners-up at the
2022 Regional Champions League. He featured in the match as a late substitution. On 31 August 2023, Takahara announced his retirement at the end of this season. ==International career==