Complex sentence: Blue Mound hosted the 2010 Western Junior, won by Patrick Rogers, and was the alternating course for the first two rounds of the 2011 U.S. Amateur, along with Erin Hills, site of the 2017 U.S. Open.
Split into simpler sentences: Blue Mound hosted the 2010 Western Junior, won by Patrick Rogers. It was also the alternating course for the first two rounds of the 2011 U.S. Amateur, along with Erin Hills, site of the 2017 U.S. Open.