Complex sentence: Dane Elkins (born 1990) is a Brentwood, California, resident and pro racquetball player who holds 18 major national junior racquetball championships (12 world outdoor racquetball championships and 6 USA National Junior Indoor Championships).
Split into simpler sentences: Dane Elkins (born 1990) is a professional racquetball player and a resident of Brentwood, California. He holds 18 major national junior racquetball championships (12 world outdoor racquetball championships and 6 USA National Junior Indoor Championships).