Madison Keys needed 81 minutes to dispatch Antonia Ruzic 6-1, 6-2 in her opening match at the Toronto WTA 1000. The 23rd-ranked American, seeded 19th, will face Marta Kostyuk in the next round.

Elsewhere in the draw, Amanda Anisimova advanced after her opponent retired. Maja Chwalinska was eliminated.

Keys will meet Kostyuk in the second round as the tournament continues.