The Taipei Open or Taipei WTA Challenger (Chinese: 台北海碩網球公開賽) was a tournament for female professional tennis players played on indoor carpet courts. The event was classified as a WTA 125 tournament, and held annually in November in Taipei City, from 2008 until 2015, and was sponsored by the OEC Group. In 2012, the event was upgraded from a $100k ITF tournament to a WTA Challenger tournament. Its final edition took place in 2019.^[1]

In 2007, OEC Group Chairman Robert Han organized an ITF tournament in Taoyuan where the prize was $50,000 plus hotel.^[2][3][4] OEC has retroactively referred to the event as the 2007 OEC Cup Taiwan Ladies Open.^[2][5]

In October 18–20, 2008, the OEC Group held the 2008 OEC Taipei Ladies Open, which was a WTA-sanctioned ITF $100,000+H tournament.^[6] held at the National Taiwan University Gymnasium and the Taipei Arena.^[7][8] In 2010 and 2011, it was called the OEC Taipei Ladies Open, and it was also sometimes referred to as the Haishuo Cup (海碩盃).^[2][9][10]

In 2012, the event was upgraded to a WTA 125 event.^[6][11] It had attracted over 60,000 visitors.^[12] In 2013, the tournament was renamed to OEC Taipei WTA Challenger.^{[2][13][14][15]} and used that name subsequently.^[16]

† – note: not considered the Taipei Open by some sources

† – note: not considered the Taipei Open by some sources

• List of sporting events in Taiwan

• Official website (in Chinese)
• WTA Challenger profile at WTATennis.com