The 2022–23 T1 League season was the second season of the T1 League, with the Kaohsiung Aquas, the New Taipei CTBC DEA, the Taichung Suns, the Tainan TSG GhostHawks, the TaiwanBeer HeroBears, and the Taoyuan Leopards participating in this competition. The regular season started on October 29, 2022 and ended on April 23, 2023.^[2] The All-Star Game was played on February 28.^[3] The play-in series started on April 25 and ended on April 27.^[4][5] The semifinals series started on April 28 and ended on May 8.^[4][6] The finals series started on May 13 and ended on May 21.^[7][8] On May 21, the New Taipei CTBC DEA defeated the Tainan TSG GhostHawks, 4–0, winning the 2022–23 season championship.^[8]

• Each team plays against another six times, three at home and three on the road, respectively. Each team plays 30 matches total in the regular season.^[9]
• Play-in series: Best-of-three series. The series are contested by the teams that finished the regular season as the fourth seed and fifth seed. The fourth seed is awarded a one-win advantage. The winner can qualify to the semifinals series.^[9]
• Semifinals series: Best-of-five series. Matchup is decided by seeding in regular season. The first seed plays against the winner of play-in series. The second seed plays against the third seed. The winners can qualify for the finals series.^[9]
• Finals series: Best-of-seven series. The series are contested by the winners of semifinals series.^[9]

• Each team is able to register 2 or 3 general import players and 1 type-III player.^[9]
• Each team is able to select 2 or 3 import players (including at least 1 type-III player) into active roster in each match.^[9]
• 8-Imports-In-4-Quarters Rule : each quarter can have 2 import players or 1 import player and 1 type-III player on the court.^[2]
• Type-III player eligibility:^[9]

(1) Naturalized players
(2) Asian import players[lower-alpha 1]
(3) Foreign students
(4) Overseas compatriots

• Since December 31, 2022, each team was able to register 3 or 4 general import players, and the T1 League cancelled type-III player.^[10]

Five teams, including the New Taipei CTBC DEA, the Taichung Suns, the Tainan TSG GhostHawks, the TaiwanBeer HeroBears, and the Taoyuan Leopards, participated in these invitational games individually.^[31] And the Kaohsiung Aquas players, Chiu Tzu-Hsuan and Lu Wei-Ting, joined to the Chinese Taipei National Training Team in these invitational games.^[32]

The preseason started on October 14, 2022, and ended on October 16. The T1 League held the preseason matches at the Xinzhuang Gymnasium.^[2]

The regular season started on October 29, 2022 and ended on April 23, 2023.^[2] 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.^[33]

The All-Star Game was played at Taipei Heping Basketball Gymnasium on February 28, 2023.^[3][36]

• Play-in series: The fourth and fifth seeds play the best-of-three play-in series. The fourth seed will be awarded a one-win advantage. The winner can qualify the semifinals series.^[9]
• Semifinals series: The winner of play-in series and the top three seeds play the best-of-five semifinals series. The winners can qualify the finals series.^[9]
• Finals series: The winners of the semifinals series play the best-of-seven finals series.^[9]

• The Taoyuan Leopards announced that they would play their home games at the National Taiwan Sport University Arena in this season.^[59]
• The TaiwanBeer HeroBears announced that their home games on April 8, 9, and 22, 2023 would change to Fu Jen Catholic University Chung Mei Auditorium in New Taipei City.^[60]

• The games will be broadcast on television via Eleven Sports, VL Sports and ELTA TV, and online via YouTube.^[61]
• The games will be broadcast online via Camerabay since December 16, 2022.^[62]

• The Taichung Wagor Suns were renamed to the Taichung Suns.
• On September 5, 2022, 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.^[63]
• On September 29, 2022, the T1 League announced that Tsai Shang-Hua served as the strategic marketing director of the league.^[64]
• On September 30, 2022, Tseng Wen-Ting of the New Taipei CTBC DEA became the first player to join SBL, CBA, ABL, PLG, and T1 League.^[65]
• On November 8, 2022, Dwight Howard, the 2004 first overall NBA draft pick, an NBA champion, eight-time NBA All-Star, eight-time All-NBA Team honoree, five-time NBA All-Defensive Team member, and three-time NBA Defensive Player of the Year, signed with the Taoyuan Leopards.^[66][67]
• On November 26, 2022, Hu Kai-Hsiang of the Tainan TSG GhostHawks recorded 2000 points in his career.^[68][69]
• On December 11, 2022, Yu Huan-Ya of the Kaohsiung Aquas recorded 2000 points in his career.^[70]
• On December 11, 2022, Li Han-Sheng of the Tainan TSG GhostHawks became the first local player to record triple-double (with 16 points, 12 rebounds, and 10 assists) in T1 League history.^[71]
• On December 11, 2022, the game matched by the Kaohsiung Aquas and the Tainan TSG GhostHawks became the first game that two players recorded triple-double (Li Han-Sheng of the Tainan TSG GhostHawks with 16 points, 12 rebounds, and 10 assists; Jason Brickman of the Kaohsiung Aquas with 22 points, 10 rebounds, and 13 assists) in T1 League history.^[71]
• On December 11, 2022, Mindaugas Kupšas of the Kaohsiung Aquas recorded 500 rebounds in T1 League career.^[72]
• On December 17, 2022, Diamond Stone of the Taichung Suns recorded 1000 points in T1 League career.^[73]
• On December 17, 2022, Lin Wei-Han of the New Taipei CTBC DEA became the first player to record triple-double (with 18 points, 11 rebounds, and 12 assists) in SBL, CBA, and T1 League.^[74] And he also became the first local player to record triple-double during the regulation game in T1 League history.^[75]
• On December 18, 2022, Jason Brickman of the Kaohsiung Aquas became the first player to record triple-double (with 19 points, 12 rebounds, and 11 assists) with two consecutive games in T1 League history.^[76]
• On January 14, 2023, Hsieh Ya-Hsuan of the New Taipei CTBC DEA recorded 100 three pointers in his career.^[77]
• On February 2, 2023, Lu Tsai Yu-Lun became the first player on loan in T1 League history.^[78]
• On February 4, 2023, Lin Jen-Hung of the Kaohsiung Aquas recorded 1000 points in his career.^[79]
• On February 4, 2023, Mohammad Al Bachir Gadiaga of the New Taipei CTBC DEA recorded 100 three pointers in his career.^[80]
• On February 11, 2023, Lin Ping-Sheng of the New Taipei CTBC DEA and Jason Brickman of the Kaohsiung Aquas all recorded 100 steals in their career.^[81]
• On February 25, 2023, Chen Ching-Huan of the Tainan TSG GhostHawks recorded 3500 points in his career.^[82]
• On February 25, 2023, Mindaugas Kupšas of the Kaohsiung Aquas recorded 1000 points in T1 League career.^[83]
• On February 28, 2023, the T1 League held the first All-Star Game since the past 20 years of Taiwanese professional basketball history.^[84]
• On March 4, 2023, Ma I-Hung, the interim head coach of the Tainan TSG GhostHawks, became the first female head coach and got first win in Taiwanese professional basketball history.^[85]
• On March 8, 2023, Hsieh Ya-Hsuan of the New Taipei CTBC DEA became the first player to award the consecutive two MVP of the Month awards in T1 League history.^[56]
• On March 8, 2023, Jason Brickman of the Kaohsiung Aquas became the first player in T1 League history to record 500 assists in personal career.^[86]
• On April 4, 2023, Mohammad Al Bachir Gadiaga of the New Taipei CTBC DEA became the first local player to record 1000 points in T1 League history.^[87]
• On April 25, 2023, the game matched by the TaiwanBeer HeroBears and the Taichung Suns became the first overtime play-in game in T1 League history.^[88]
• On April 25, 2023, Rayvonte Rice of the Taichung Suns became the first player to record triple-double (with 44 points, 12 rebounds, and 11 assists) during the play-in series in T1 League history.^[88]
• On April 26, 2023, Deyonta Davis of the Taoyuan Leopards became the first player to award the consecutive two Blocks Leader awards in T1 League history.^[48]
• On April 27, 2023, Taichung Suns became the first team to qualify semifinals series with lower seed in T1 League history.^[89]
• On April 29, 2023, New Taipei CTBC DEA became the first team to award the consecutive two Best Home-Court of the Year awards in T1 League history.^[40]
• On May 10, 2023, Lin Ping-Sheng of the New Taipei CTBC DEA, Deyonta Davis of the Taoyuan Leopards, and Hu Long-Mao of the Kaohsiung Aquas became the players to award the consecutive two All-Defensive First Team awards in T1 League history.^[90][47]
• On May 11, 2023, Mohammad Al Bachir Gadiaga of the New Taipei CTBC DEA, Chiang Yu-An of the TaiwanBeer HeroBears, and Jason Brickman of the Kaohsiung Aquas became the players to award the consecutive two All-T1 League First Team awards in T1 League history.^[46]
• On May 21, 2023, Tseng Wen-Ting of the New Taipei CTBC DEA became the first player to win the championship of three Taiwanese related basketball league (SBL, PLG, and T1).^[8][91]
• On May 21, 2023, Lee Hsueh-Lin of the New Taipei CTBC DEA became the first player to win the championship of the SBL, CBA, and T1 League.^[8]
• On May 21, 2023, New Taipei CTBC DEA became the first team to win the whole 19 home games of regular season (15 games), semifinals series (2 games), and finals series (2 games) during one season in T1 League history. And CTBC Financial Holding, ownership of the CTBC Brothers and New Taipei CTBC DEA, became the first company to win the championship of the Taiwanese professional baseball and basketball (CTBC Brothers in 2021 and New Taipei CTBC DEA in 2023).^[92] Liu Chih-Wei, general manager of the CTBC Brothers and New Taipei CTBC DEA, also became the first champion general manager of the Taiwanese professional baseball and basketball (named as general manager of the CTBC Brothers since 2017 and New Taipei CTBC DEA since 2022).^[93]
• On June 1, 2023, Yu Jung became the first referee to award the consecutive two Referees of the Year awards in T1 League history.^[94][95]

• 2022–23 Kaohsiung Aquas season
• 2022–23 New Taipei CTBC DEA season
• 2022–23 Taichung Suns season
• 2022–23 Tainan TSG GhostHawks season
• 2022–23 TaiwanBeer HeroBears season
• 2022–23 Taoyuan Leopards season