The match started on Tuesday night and dragged past midnight before being suspended by rain with Blake leading 6-1, 3-6, 5-3, 40-40.
Blake secured his fourth match point with a backhand passing shot and then hit a service winner to end the match in less than one minute of play.
Story continues below ↓advertisement | your ad here"That was quick," Blake said. "It was what I was hoping for, but it's a different situation. It's tough mentally, but I'm through it and now I'm ready for more."
Blake, a two-time Delray Beach finalist, will face 364th-ranked Robin Haase of the Netherlands in the second round.
Rain continued to pour on Wednesday, and another eight other matches were postponed until Thursday.
Dent hoped a fresh start on Wednesday could help him turn things around. But it was over almost before it started.
"It's disappointing all the same to get fired up again and have that glimmer of hope and get it dashed like that," Dent said. "But I guess it would've been worse if it was like a 10 minute long game."
In another match completed Wednesday, 69th-ranked Leonardo Mayer of Argentina upset sixth-seeded Florian Mayer of Germany 6-4, 7-6 (4).
"I played a terrible match," Mayer said. "To be honest, I played really bad today. He deserved to win, he played his game and served well."
© 2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Djokovic beats Garcia-Lopez in DubaiPrimera Division round-up
