The Cougars started the second set strong, but Blake and Majmudar withstood the charge and took a 5-3 lead on a service break.
BYU would not go down without a fight, however, as it broke Blake's serve to creep to within 5-4. But that was as close as it would get, as the Crimson tandem broke serve to take the set, 6-4, to close out the match.
Majmudar and Blake are now 24-8 on the season heading into tomorrow's match.
With his doubles and singles victories, Blake has ensured himself a busy day today as he will play in the doubles match as well as at least one singles match.
Blake will face unseeded Roberto Bracone of North Carolina State at 9 a.m. today in the round of 16. Bracone upset the No. 16 seed Robert Kendrick of Washington yesterday.
Should Blake defeat Bracone, he will also have to play a second singles match today at 1 p.m. for the right to advance to the final four. The time of the doubles match will be determined at the conclusion of Blake's singles match against Bracone.
Blake insists that he is focusing on both singles and doubles with equal intensity.
"Doubles is just as important to me as singles, if not more," Blake said. "I want to do well in both. It's a lot harder to lose in doubles, because you feel like you let your partner down. Playing in both is a little tiring, but it is certainly worth it."
Blake reached the second round of the tournament with a 6-2, 6-3 victory over Asaf Tishler of UNLV Wednesday.
If he goes on to win the tournament and national title in singles, it will mark the third out of four possible NCAA grand slam events that Blake has won this year.
In other first round singles action, Majmudar dropped a tough 7-5 (2), 6-4 decision to No. 6 seed Mike Chmela of LSU Wednesday.