BOSTON (CBS) – Geoffrey Mutai and Kim Smith each won the BAA 10K Sunday in Boston.

Mutai finished with a time of 27:29, the fastest 10K run so far this year. He also won the men’s race last year.

“I am happy again. I don’t know if you know all my happiness when I am in Boston. It is not like other races,” Mutai said.

Smith, meanwhile, set a women’s course record with a time of 31:36, beating the old record by 22 seconds.

Smith, a New Zealand native living in Providence, Rhode Island, beat out a field that included 2012 Boston Marathon champion Sharon Cherop and defending BAA 10K champion Caroline Kilel.

“Being local, I think I knew a lot of people in the race,” Smith said. “I felt like everyone was kind of cheering for me.”

In all, 4,560 competitors finished Sunday’s race.

The twelfth annual B.A.A. Half Marathon will be held on Sunday, October 7 in Boston.