Tseng was born in Guishan, Taiwan, and developed at Sunrise Golf & Country Club. She won major amateur events before turning professional in 2007, a progression summarised in the LPGA’s official biography. The Britannica biography also places her early achievements in the wider history of women’s golf.

She won on regional tours and qualified for the LPGA, then captured the 2008 LPGA Championship as a teenager. The LPGA overview records 15 career wins and official career earnings above $10 million. She made 27 cuts from 28 starts in her rookie season and earned more than $1.7 million, immediately creating a substantial playing-income base.

Her first LPGA major made her the first golfer from Taiwan to win one of the tour’s majors. She followed that breakthrough with Rookie of the Year honours and reached major prize-money milestones faster than almost any predecessor.

Tseng won the 2010 Kraft Nabisco Championship and Women’s British Open, then added two majors in 2011. The LPGA’s retrospective recounts her rise, while the Rolex Rankings profile documents her competitive record. Seven LPGA wins in 2011 produced the leading annual money total and made her the youngest golfer, male or female, to collect five majors, dramatically increasing her value to sponsors across Asia.

Tournament purses are the most measurable source, led by an exceptional 2011 season in which she topped the LPGA money list. Equipment, apparel, watch, automotive and Taiwanese corporate endorsements supplemented playing income during her years at number one. Those contracts were concentrated in the 2010–2012 peak, so the estimate does not extrapolate peak endorsement income across the later seasons when results and visibility declined.

Published sponsor histories connect Tseng with Callaway, Adidas, Rolex and major Taiwanese brands. A current Celebrity Net Worth review describes the endorsement portfolio and estimates that peak annual income combined prize money and sponsorships.

Most identifiable partnerships have been sponsorships rather than disclosed equity investments. Equipment agreements could also reduce playing costs through supplied clubs and support even when their cash component was private. There is no reliable public evidence of a large business sale or a company holding that should be added independently to her playing and endorsement earnings.

Media reports have discussed Tseng’s US base and training arrangements, but current property title, mortgage debt, investment holdings and tax residence are not fully public. Career prize money is gross income before caddie percentages, coaching, travel and taxes.