Complex sentence: Coached by four-time Olympic medalist, Clarence Pinkston, Gilders entered the Games as the U.S. Olympic Trials silver medalist; during her lone Olympic competition, Barbara narrowly missed a trip to the medals podium.
Split into simpler sentences: Coached by four-time Olympic medalist, Clarence Pinkston, Gilders entered the Games as the U.S. Olympic Trials silver medalist. During her lone Olympic competition, Barbara narrowly missed a trip to the medals podium.