Spain's Carla Suarez Navarro narrowly won her delayed first-round match with Elina Svitolina at the weather-affected Aegon Classic, while top seed Agnieszka Radwanska was knocked out.
The match was originally scheduled to take place on Monday, finally got under way on Tuesday, and could only be completed at Wednesday, as rain continued to play havoc with the schedule in Birmingham.
With more rain clouds gathering and threatening another suspension, Suarez Navarro managed to complete a 7-5, 4-6, 7-5 victory.
Resuming at 2-1 in the decider, Svitolina snatched the first three games and later found herself two points away from victory, only for Suarez Navarro to produce an impressive late rally to snatch victory from the jaws of defeat.
In other results, British wildcards Naomi Broady and Tara Moore both suffered defeats, Broady beaten 4-6, 6-2, 6-3 by Daria Gavrilova and Moore going down 4-6, 6-4, 6-4 to Tamira Paszek.
Both of those matches started on Tuesday as well.
There were also wins for Christina McHale and Carolina Vandeweghe, who achieved one of the biggest wins of her career by ousting top seed Agnieszka Radwanska 7-5, 4-6, 6-3.
The American hadn't managed to even win a set against the Pole in four previous meetings, but was finally able to turn the tables by winning four of the last five games in the third and final set, after there was little separating them in the first two sets.
Caroline Wozniacki was leading Yanina Wickmayer 3-2 when yet another rain delay brought play to a close.