Oita Trinita

The club's name, Trinita, is the Italian translation of the word trinity (trinità), which was the club's original name before being changed in 1999, and Ōita, the club's home town.^[1] The combined word expresses the will of the local citizens, companies, and government to support the team. Another connection to the Italian culture can be found in the city nickname Azzurro ("light blue" in Italian).

The club was formed as Ōita Trinity in 1994 and advanced through the Ōita Prefectural League and the Kyushu League before finishing as the runner-up of the 1996 National League, resulting in promotion to the JFL. In 1999, the club changed its name to Trinita due to copyright infringement concerns. The same year, the club joined J.League Division 2, the second-highest flight in Japanese football (renamed to its current name of J2 League in 2015) and placed third. The club also placed third in 2000, and despite being in contention for promotion until the final game of the season in 2001, finished sixth. The following year, the club won J.League Division 2 and finally earned promotion to the top-flight Division 1. In 2008, the club won the J.League Cup, the first major title won by a Kyūshū club since Yawata Steel SC shared the 1964 Emperor's Cup.^[2]

In the 2009 season, Ōita suffered their worst-ever results in their seven-year history in the topflight, including 14 straight losses in league matches, which is the current worst record in the J.League since the golden goal system was eliminated. Ōita even fired cup-winning manager Pericles Chamusca in mid-July.^[3] On October 25, the club's relegation was confirmed after being held to a 1–1 draw by ten-man Kyoto Sanga, although the club would have faced relegation anyway as they had outstanding loans from the JFL's emergency fund and league rules prohibit clubs with such loans from participating in the top tier.^[4]

During the 2012 J.League Division 2 season, Ōita finished in sixth place, qualifying for the promotion playoffs in the first year of its introduction in Japan's second flight as the club had also paid back all its emergency loans that October. Despite being the lowest seed, Ōita defeated Kyoto Sanga 4–0 in the semi-final and JEF United Chiba 1–0 in the final, earning promotion to 2013 J.League Division 1, returning to the top tier after a 5-year absence^[5] This time, however, their top tier stay lasted only one season. In 2015 they were further relegated to J3 League after losing in the promotion playoffs to Machida Zelvia on December 6,^[6] becoming the first major trophy winner to be relegated to the third tier. The club immediately gained promotion back to J2 League by winning the J3 League title in 2016. In 2018, after finishing as runner's up in the J2 League in 2018, Oita Trinita gained promotion back to J1. After finishing 18th in 2021, Trinita would be relegated back to J2 League, but in the background of that, the club made a Cinderella run to the Emperor's Cup Final. Just 1 week after the confirmation to be relegated, they defeated defending Emperor's Cup champion Kawasaki Frontale in stunning fashion in the semis; after the game was tied 1 all, Trinita won 4–5 on penalty kicks. They ended up losing to Urawa Red Diamonds in the final, giving the Reds their eighth Emperor's Cup title.

The club will play its second consecutive season at the J2 League in the 2023 season.

The club's home town is the city of Ōita, but the club draws support from the entire Ōita Prefecture. The stadium originally had a capacity of 43,000. After the 2002 FIFA World Cup, 3,000 movable seats on the track were removed, giving the stadium its current capacity of 40,000.

The club's home ground is Resonac Dome Oita, also known as the "Big Eye", which was one of the venues built for the 2002 FIFA World Cup. The club practices at its adjacent football and rugby field, and Ōita City Public Ground.

As of 25 June 2024.^[7]

Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

No.	Pos.	Nation	Player
23	DF	JPN	Shunsuke Ono
24	GK	JPN	Konosuke Nishikawa
25	DF	JPN	Tomoya Ando
26	MF	JPN	Kenshin Yasuda
27	DF	JPN	Yusuke Matsuo
29	FW	JPN	Shinya Utsumoto
30	DF	JPN	Yusho Takahashi
31	DF	BRA	Pereira
32	GK	JPN	Taro Hamada
34	DF	JPN	Yudai Fujiwara (on loan from Urawa Red Diamonds)
35	MF	JPN	Josei Sato
36	MF	JPN	Hayato Matsuoka
37	MF	JPN	Manato Kimoto DSP
39	FW	JPN	Shuto Udo DSP
41	FW	KOR	Kim Hyun-woo
42	MF	JPN	Seiryu Ono Type 2
43	DF	JPN	Soha Yano Type 2
44	DF	JPN	Manato Yoshida (on loan from Yokohama F. Marinos)
48	GK	JPN	Hiroto Kono Type 2
93	FW	JPN	Shun Nagasawa

• Cui Daewoo (1999)
• Tomohiro Katanosaka (2000)
• Tetsuro Uki (2002–2003)
• Sandro (2004)
• Takayuki Yoshida (2005)
• Takashi Miki (2006–2007)
• Daiki Takamatsu (2008–2010)
• Masashi Miyazawa (2011–2013)
• Kazumichi Takagi (2014)
• Daniel (2015)
• Satoru Yamagishi (2016–2017)
• Akira Takeuchi (January – August 2018)
• Kenji Baba (August – December 2018)
• Yoshinori Suzuki (2019–2020)
• Shun Takagi (2021)
• Hokuto Shimoda (2022)
• Tsukasa Umesaki (2023)
• Arata Watanabe (2024–present)

Key

• Official website (in Japanese)

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