The pair won the Riviera All-American.
The pair won in a tiebreaker on Sunday.
The pair won 6-3, 6-3 in the semifinal.
Duke will have two teams in the semis.
Duke won four matches on Wednesday.
The pair won three qualifying matches.
Chen and Harris advanced in doubles.
Chen beat Sabrina Federici to advance.
Chen won twice on Saturday.
The tournament starts Saturday.
Harris lost in the mixed doubles final.
The senior will play tomorrow night.