In March 2010, she won the all-around at the American Cup. Rebecca won every event with the exception of the vault, which was won by Aly Raisman. In April, she won the senior all-around title at the Pacific Rim Championships in Melbourne, Australia. At the 2010 Visa Championships, Rebecca finished Day 1 with a two-point lead. On Day 2, she finished with a three-point lead, clinching the event to become the 2010 national champion. She was selected for the women's team for the 2010 World Artistic Gymnastics Championships in Rotterdam, Netherlands. There, she helped the United States win a silver medal behind the newly dominant Russian team. In the all-around, after a fall on beam, she bounced back on floor to get the bronze medal, scoring a 15.233 — the highest score given on floor to any women in the entire meet. Russia's Aliya Mustafina was the winner, and China's Jiang Yuyuan was the silver medalist. In event finals, Rebecca clinched the bronze on the uneven bars and tied with China's Deng Linlin for the silver on the balance beam behind Romania's Porgras.