For the 2016–17 season Peterson was back played with Roth's women's team, this time as third. Team Roth won the Molson Cash Spiel that year, a WCT event. At the 2017 National Championship they earned a silver medal when they lost to their former teammate Jamie Sinclair in the final. Peterson's team represented the United States at the 2017 Americas Challenge, where they beat Brazil to qualify the U.S. for the 2017 World Championship. Due to the United States Curling Association's point system at the time, they also got to compete at the 2017 World's despite not being the National Champions. At World's Peterson and Team USA finished fifth with a record of 6–5.