|Date||R||Home vs Away||-|
|05/21 06:00||-||Tainan TSG Ghosthawks vs New Taipei CTBC DEA||93-120|
|05/19 11:00||-||Tainan TSG Ghosthawks vs New Taipei CTBC DEA||96-112|
|05/15 11:00||-||New Taipei CTBC DEA vs Tainan GhostHawks||108-98|
|05/13 06:00||-||New Taipei CTBC DEA vs Tainan GhostHawks||13-12|
|05/07 06:00||-||New Taipei CTBC DEA vs Taichung Suns||130-86|
|05/04 11:00||-||Taichung Suns vs New Taipei CTBC DEA||83-110|
|05/03 11:00||-||Kaohsiung Aquas vs Tainan GhostHawks||88-97|
|05/01 11:00||-||New Taipei CTBC DEA vs Taichung Suns||126-78|
|04/30 06:00||-||Tainan GhostHawks vs Kaohsiung Aquas||103-124|
|04/28 10:30||-||Tainan GhostHawks vs Kaohsiung Aquas||117-103|
|04/27 11:00||-||Taiwan HeroBears vs Taichung Suns||118-120|
|04/25 11:00||-||Taichung Suns vs Taiwan Beer HeroBears||138-130|
The T1 League (Chinese: T1聯盟) is a Taiwanese men's professional basketball league founded in 2021. The league is composed of six teams. It is the third professional basketball league after the now-defunct Chinese Basketball Alliance (CBA; 1994–1999) and P. League+ (PLG; founded in 2020) in Taiwan.
On May 10, 2021, Kuan Kuang-Chung, the former National Basketball Association (NBA) Taiwan region general manager, served as the sponsor of the new professional basketball league. And there were four corporations willing to join the league. On May 24, the name of the new league was announced as T1 League. There were four teams came from Kaohsiung City, New Taipei City, Taichung City, and Taipei City applied to join the league. On May 26, the Kaohsiung Aquas announced to join the T1 League. On June 19, the Taichung Suns was established formally. On July 30, the New Taipei CTBC DEA was established formally to be the new team of the T1 League.
On August 6, the T1 League announced that Chien Wei-Chuan was the commissioner of the league. Besides, the Taoyuan Leopards and the Tainan team would join the league. On August 9, the T1 League held the first draft. There were 58 players participated in the draft, and 17 players were chosen in 5 rounds. On September 2, the Taiwan Beer basketball team announced to join the league as the TaiwanBeer HeroBears. On September 6, the T1 League announced that Chang Yun-Chih was the secretary general of the league. On September 30, the name of Tainan team was announced as the Tainan TSG GhostHawks. On November 25, the Taichung Suns changed the name to the Taichung Wagor Suns. On November 27, the 2021–22 season opening game, matched by the Kaohsiung Aquas and the TaiwanBeer HeroBears, was played at University of Taipei Tianmu Campus Gymnasium.
On June 4, 2022, the Kaohsiung Aquas defeated the Taichung Wagor Suns, 3–0, winning the 2021–22 season championship. On July 12, the T1 League held the second draft. There were 44 players participated in the draft, and 14 players were chosen in 3 rounds. On September 5, the T1 League announced that Liu Yi-Cheng served as the vice commissioner of the league. Hsieh Chih-Cheng was the new chief operating officer, and Chang Shu-Jen, the general manager of the New Taipei CTBC DEA, was the new secretary general of the league. The former secretary general and chief operating officer, Chang Yun-Chih and Chia Fan, would transfer to senior consultant and tournament consultant, respectively. On September 29, the T1 League announced that Tsai Shang-Hua served as the strategic marketing director of the league. On October 29, the 2022–23 season opening game, matched by the Kaohsiung Aquas and the New Taipei CTBC DEA, was played at Xinzhuang Gymnasium.
On February 28, 2023, the T1 League held the first All-Star Game at Taipei Heping Basketball Gymnasium.