|Full name||Ariajasuru Hasegawa|
|Date of birth||29 October 1988|
|Place of birth||Tsurugashima, Japan|
|Height||1.86 m (6 ft 1 in)|
|Playing position||Attacking midfielder|
|2004–2006||Yokohama F. Marinos|
|2007–2011||Yokohama F. Marinos||73||(4)|
* Senior club appearances and goals counted for the domestic league only and correct as of 31 March 2016.
Born in Tsurugashima, Saitama, Hasegawa joined Yokohama F. Marinos' youth setup in 2004, aged 16, after starting it out at Sakado Diplomats. In November 2006 he was promoted to the main squad ahead of the following campaign, and made his professional debut on 3 March 2007, in a 1–0 home win against Ventforet Kofu; however, he struggled severely with injuries during the year.
On 6 June 2008 Hasegawa signed a professional deal with Marinos, and scored his first senior goal on 29 November, netting the last in a 2–0 home success against Tokyo Verdy. During the 2010 season he was also used as a forward, but mainly as a substitute.
On 6 January 2012 Hasegawa moved to fellow league team F.C. Tokyo. He was mainly used as a defensive midfielder by manager Ranko Popović, and scored five goals in 2013; on 29 December 2013 he extended his contract with the club.
On 2 July 2015 Hasegawa moved abroad for the first time in his career, signing a one-year deal with Real Zaragoza and working with Popović for the third time.
On 29 March 2016, Hasegawa returned to Japan and play for Shonan Bellmare.
Hasegawa represented Japan in the under-20 level between 2006 and 2010, being capped three times and scoring one goal. In December 2012 he got called up to the main squad by coach Alberto Zaccheroni for a friendly against Azerbaijan, but remained unused in the 2–0 win.
Born to an Iranian father and a Japanese mother, Hasegawa is eligible to play for Japan or Iran, the latter being obtained in April 2014.
|Club performance||League||Cup||League Cup||Other||Total|
|Japan||League||Emperor's Cup||J. League Cup||Other1||Total|
|2007||Yokohama F. Marinos||J1 League||2||0||0||0||0||0||–||2||0|
- "アーリアジャスール：湘南ベルマーレ：Ｊリーグ.jp". jleague.jp. Retrieved 2016-09-22.
- "長谷川、神戸・安達監督に恩返しゴールだ…Ｆ東京" [Hasegawa, grateful to coach Kobe Adachi... F Tokyo] (in Japanese). Yomiuri. 10 November 2012. Archived from the original on 10 November 2012. Retrieved 5 July 2015.
- "2007年度、新加入選手について" [Year 2007, newest players] (in Japanese). Yokohama Marinos' official website. 4 November 2006. Archived from the original on 18 January 2007. Retrieved 5 July 2015.
- "長谷川アーリアジャスール選手、プロＡ契約締結" [Player Aria Jasuru Hasegawa, professional contract] (in Japanese). Yokohama Marinos' official website. 6 June 2008. Archived from the original on 11 March 2012. Retrieved 5 July 2015.
- "横浜首位清水撃破へＦＷ長谷川が先発濃厚" [Forward Hasegawa starts with Yokohama defeated by leaders Shimizu] (in Japanese). Nikkan Sports. 13 August 2010. Retrieved 5 July 2015.
- "長谷川アーリアジャスール選手 完全移籍加入決定のお知らせ" [Announcement of transfer of player Aria Jasuru Hasegawa] (in Japanese). FC Tokyo's official website. 6 January 2012. Retrieved 5 July 2015.
- "ＦＣ東京 長谷川アーリアと合意、来季残留が基本線" [FC Tokyo and Aria Hasegawa, agreement of contract extension] (in Japanese). Sponichi Anex. 29 December 2013. Retrieved 5 July 2015.
- "長谷川アーリアジャスール選手 セレッソ大阪へ完全移籍のお知らせ" [Player Aria Jasuru Hasegawa permanent move to Cerezo Osaka] (in Japanese). FC Tokyo's official website. 16 January 2014. Retrieved 5 July 2015.
- "Acuerdo para la incorporación de Aria Jasuru Hasegawa" [Agreement for the signing of Aria Jasuru Hasegawa] (in Spanish). Zaragoza's official website. 2 July 2015. Retrieved 5 July 2015.
- "OFICIAL: Shonan Bellmare, firma el ex zaragocista Aria Hasegawa" [OFFICIAL : Shonan Bellmare, signing former Zaragoza Aria Hasegawa] (in Spanish). TODOmercadoWEB. 29 March 2016. Retrieved 29 March 2016.
- "Japan 2–0 Azerbaijan: Kagawa on scoresheet as Samurai Blue ease to victory". Goal.com. 23 May 2012. Retrieved 5 July 2015.
- "Aria Hasegawa on Queiroz's radar". Persian Football. 15 December 2013. Retrieved 5 July 2015.
- "Iranian-Japanese midfielder Aria Jasuru Hasegawa eligible to play for Iran". Jahan Magazine. 20 April 2014. Retrieved 5 July 2015.
- Nippon Sports Kikaku Publishing inc./日本スポーツ企画出版社, "2016J1&J2&J3選手名鑑", 10 February 2016, Japan, ISBN 978-4905411338 (p. 289 out of 289)
- "「コカ・コーラ Ｊリーグ 月間ＭＶＰ」9月の受賞選手決定！" ["Coca-Cola J-League MVP of the month": winners of September!] (in Japanese). J.League. 17 October 2013. Archived from the original on 29 January 2014. Retrieved 17 October 2013.