Complex sentence: MacMillan attended San Pasqual High School in Escondido, California, and then played for the University of Portland, where she won the Hermann Trophy for the best female collegiate soccer player of the 1995 season.
Split into simpler sentences: MacMillan attended San Pasqual High School in Escondido, California. MacMillan played for the University of Portland, where she won the Hermann Trophy for the best female collegiate soccer player of the 1995 season.