Great Britain moved a step closer to the 2022 Billie Jean King Cup Finals after Katie Boulter clinched victory in their play-off tie against Mexico.
The former world number 82 had too much quality for 434th-ranked Olmos in a confident and powerful performance.
Anne Keothavong's team progress to next year's qualifiers, where another win will put them in the 12-team finals.
After Britain earned a 2-0 lead on Friday, Heather Watson had the chance to secure victory at the first time of asking earlier on Saturday.
The British number two lost 6-3 7-6 (7-1) against Mexico's Marcela Zacarias, leaving Boulter with the task of beating Olmos to avoid the tie going to the deciding doubles rubber.