After the 2013–14 season the USCA revamped their High Performance Program from team-based to individual-based; curlers would be invited into the program as individuals and then assigned teammates. Christensen was selected as the skip of the junior women's team, to play with Sarah Anderson at third, MacKenzie Lank at second, Jenna Haag at lead, and Sarah's twin sister Taylor Anderson as alternate. The new Team Christensen won the 2014 Molson Cash Spiel, a WCT event, defeating Canadian Kendra Lilly in the final. They then won the 2015 Junior National Championship, defeating Madison Bear's team 10–6 in nine ends in the final. A month later Christensen made her first non-junior national appearance when her team competed at the 2015 United States Women's Championship. They finished the round-robin with a 8–1 record but lost in the 3 vs 4 page playoff game to Patti Lank, MacKenzie's mother and a five-time United States champion. At the 2015 World Juniors Christensen finished the round-robin with a 5–4 record, the same as in 2014, but this time it was good enough to tie Lisa Gisler's Switzerland team for the last playoffs berth. Christensen lost the tiebreaker game to Gisler, who would go on to win the bronze medal.