Trent Nelson | The Salt Lake Tribune Riders crash in the expert class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders in the expert class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Ryan Goodwin leads the pack in the 10-year-old expert class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Corey Salas and Zachary Vankammen in a tight race, competing in the 19-27 expert age class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Morgan Zimmerman races in the 12-year-old girls age class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Kohl Piluso races in the 12-year-old expert age class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune 9-year-old girls Gianna Davila, left, and Stella Sunseri race at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders in the expert class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Dyllan Calwell races at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune 7-year-old Declan Hurley races at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Riders at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Corben Sharrah leads in the elite classat the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Gianni Law in the lead, racing in the 13-year-old expert age class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.Trent Nelson | The Salt Lake Tribune Nic Long leads in the elite class at the U.S. BMX National Series at Rad Canyon BMX in South Jordan, Saturday June 13, 2015.