LONDON -- With rain delaying play on the outside courts, Agnieszka Radwanska wasted no time in taking care of business under the roof on Centre Court.
The third-seeded Pole, who reached the final here in 2012, overwhelmed Kateryna Kozlova 6-2, 6-1 in just over an hour Wednesday to move into the second round at the All England Club.
Radwanska used her clever all-court game to thoroughly dominate the 97th-ranked Ukrainian, who was making her main draw debut at Wimbledon and has never won a Grand Slam match. Radwanska won the first four games and was always in control.
"A one-hour match is always good, especially with that weather," Radwanska said. "Now we're playing every day, so I'm just very happy with that win and ready for the next one."
The match was played in its entirety under the retractable roof, which was closed after steady rain lashed the grounds and forced delays on all other courts.
"It's like an indoor tournament, sometimes," Radwanska said. "Have to kind of get used to that. Of course, it's a little bit different without the sun, without the wind. So it's a different game. But, well, it's good that we could play today."
Radwanska lost to Serena Williams in three sets in the 2012 final. The two are in the same half of the draw this year and could meet in the semifinals.
"[I'm] trying every year to do better and better, of course," Radwanska said. "I was close a couple times. So it's another year to try. And hopefully I can do one step [further]."
Before play was stopped by rain on the outside courts, No. 32 Andrea Petkovic beat Nao Hibino of Japan, 3-6, 7-5, 6-2; and Evgeniya Rodina downed Lesya Tsurenko 6-3, 7-5.
Many more matches, however, were canceled, including those involving Garbine Muguruza (2), Angelique Kerber (4), Simona Halep (5), Venus Williams (8), Madison Keys (9), Carla Suarez Navarro (12), Samantha Stosur (14), Elina Svitolina (17), Sara Errani (20), Jelena Jankovic (22), Kiki Bertens (26) and Darya Kasatkina (29).