2018 Monterrey Open
The 2018 Monterrey Open, also known as the Abierto GNP Seguros for sponsorship reasons, was a women's tennis tournament played on outdoor hard courts. It was the 10th edition of the Monterrey Open and an International tournament on the 2018 WTA Tour. It took place at the Club Sonoma in Monterrey, Mexico, from 2 April until 8 April 2018. Firsts-seeded Garbiñe Muguruza won the singles title.
Finals
Singles
- Garbiñe Muguruza defeating Tímea Babos, 3–6, 6–4, 6–3
- It was Muguruza's only singles title of the year and the 6th of her career.
Doubles
- Naomi Broady / Sara Sorribes Tormo defeating Desirae Krawczyk / Giuliana Olmos, 3–6, 6–4,
Singles main draw entrants
Seeds
- 1 Rankings as of 19 March 2018.
Other entrants
The following players received wildcards into the main draw:The following players received entry from the qualifying draw:
Withdrawals
;Before the tournament- Sabine Lisicki → replaced by Risa Ozaki
- Monica Niculescu → replaced by Irina Falconi
- Anastasia Pavlyuchenkova → replaced by Carol Zhao
Doubles main draw entrants
Seeds
- Rankings as of March 19, 2018.