|Date of birth||9 May 1991|
|Place of birth||Kumagaya, Saitama, Japan|
|Height||1.78 m (5 ft 10 in)|
|Kōnan Minami SS|
|2004–2009||Urawa Red Diamonds|
|2008–2014||Urawa Red Diamonds||167||(33)|
|2018||→ Fortuna Düsseldorf (loan)||13||(1)|
*Club domestic league appearances and goals, correct as of 6 August 2022|
‡ National team caps and goals, correct as of 14 June 2022
Urawa Red Diamonds
Haraguchi made his debut as a professional on 25 May 2008, in the J. League Cup match against Nagoya Grampus. He scored his first professional goal against Nagoya Grampus in a J. League Division 1 game on 12 April 2009.
On 25 May 2014, it was announced that Haraguchi had been signed by Hertha BSC. He scored his first competitive goal for Hertha on 16 August 2014 in a 4–2 win during the first round DFB Pokal game against FC Viktoria Köln. He scored his first Bundesliga goal on 14 March against Schalke 04 to put Hertha 2–1 in front.
Fortuna Düsseldorf (loan)
While on loan at Düsseldorf for the 2017–18 season, Haraguchi played a key role in helping the side gain promotion to the Bundesliga.
On 11 June 2018, Haraguchi announced that he had reached an agreement to join Hannover 96 for the 2018–19 season.
2011 AFC Asian Cup
Haraguchi was elected as one of the preliminary registration members on Japan's 50-man list.
2013 EAFF East Asian Cup
Haraguchi played for Japan in the 2013 EAFF East Asian Cup. He played against China PR and South Korea for 71 and 90 minutes respectively, and helped Japan to win the championship for the first time.
2018 World Cup