Rains have disrupted the tournament's schedule with showers falling throughout Tuesday and for much of Wednesday.
Blake began his match against Robert Kendrick on Tuesday and was leading 3-2 in the first set when the rains came. Blake finished off a 7-5, 7-5 decision Wednesday as he attempts to reach the final of this event for the second straight year.
Sam Querrey moved on to the second round with a 6-1, 6-4 decision over Yuri Schukin in a match that also was spread over two days.
Swim Week Miami Beach 2014 [PHOTOS]