In 2015, Nontaya played in 7 LET tournaments. She has her best performance of the season at the ISPA Handa Ladies European Masters where she came 3rd. She finished the season 20th in the Order of Merit, winning €82,630.17.
In 2014, Nontaya played in 12 LET tournaments and secured her best finish of the season at the Open de Espana Femenino where she finished T5.
In 2013, played in 18 LET events and recorded two top ten finishes including a season-best result of 8th at the ISPS HANDA Ladies European Masters.
In 2012, her second season on the LET, Nontaya played in 15 events and posted 6 top-10 finishes. After winning the Thailand Ladies Open on the Ladies Asian Golf Tour, she suffered a bout of Dengue Fever, but was thrilled to come back with a career-best finish of 3rd at the Hero Women’s Indian Open at DLF Golf and Country Club. She also finished T3 at the Allianz Ladies Slovak Open, 6th at the World Ladies Championship, 8th at the Lacoste Ladies Open de France and T10 at the Omega Dubai Ladies Masters.
In 2011, her first season on the LET, Nontaya played in 13 LET events and recorded two top-10 finishes including a career best T6 at the Hero Women’s Indian Open and joint 9th at the Suzhou Taihu Ladies Open.
In 2010, Nontaya played on the US Duramed Futures Tour with a season best T2 at the 2009 Historic Brownsville Open in Rancho Viejo, Texas in 2010. She also tied for second at the LET’s 2010 Hero Honda Women’s Indian Open, which was co-sanctioned with the LAGT. She was defeated at the first extra hole by Laura Davies in a four-way play-off. She also T35 at the co-sanctioned Sanya Ladies Open and T19 at the Suzhou Taihu Ladies Open in China.
In 2009, she competed in four LPGA events but did not make a cut. She also played on the Duramed Futures Tour with a season best finish of second.
In 2008, competed in four events on the Duramed FUTURES Tour; tied for 29th at the LPGA Final Qualifying Tournament to earn Priority List Category 16 for the 2009 LPGA season. In 2009, she competed in four LPGA events but did not make a cut. She also played on the Duramed Futures Tour with a season best finish of second.
In 2007, she competed in 13 events on the Duramed FUTURES Tour, where her best finish was a T7 at the Jalapeno Duramed FUTURES Golf Classic.
In 2006, Nontaya turned professional in January and competed on the Ladies Asian Golf Tour, where she won the Orient Masters WenZhou China.