Thiesse skipped her team to victory, earning her first national title and her first opportunity to represent the United States at the World Junior Championships.

[10] The next season Thiesse returned to competition with the Bauman sisters remaining on the front end of the team and Rebecca Funk replacing Busche at third.

[12] At the 2013 Junior Nationals it looked like Thiesse was going to defend to her title when she finished the round-robin as the number one seed with a 8–1 record, but ultimately she had to settle for the silver medal when they lost the final to Miranda Solem's team by a single point.

[15][16] After Thiesse returned from the World Championship she rejoined her Junior Nationals team, plus Mackenzie Lank as alternate, for one more event at the end of the season, the qualifier to represent the United States at the 2013 Winter Universiade.

[17] Tied after the round-robin, Thiesse defeated Becca Hamilton's team in a tiebreaker to earn their trip to the Winter Universiade next season.

[18][19] Over the 2013 off-season it was announced that the Christensen team was joining the United States Curling Association's (USCA) Project 2018 Program, to which they were invited due to winning the University Games Qualifier at the end of the previous season.

Thiesse , Funk, and the Bauman sisters started the 2013–14 season off playing in a series of World Curling Tour (WCT) bonspiels as a lead up to the 2013 Winter Universiade.

The new Team Thiesse won the 2014 Molson Cash Spiel, a WCT event, defeating Canadian Kendra Lilly in the final.

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.

[34] 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.

[35][36] Also during the 2014–15 season Thiesse made her competitive debut in mixed doubles, a discipline of curling where teams are composed of one man and one woman.

[37] Coming into the 2015–16 season Thiesse's team again had line-up changes since MacKenzie Lank was no longer part of the USCA High Performance Program and Jenna Haag had graduated from juniors to women's.

[39] At the 2016 Junior National Championship the team finished with a perfect 11–0 record, never even needing to play a full ten end game.

[43] At Thiesse's final World Junior Championship she found her greatest success, finishing the round-robin with a 7–2 record, good enough for the second seed in the page playoff system.

This gave the United States a path straight to the final where they ultimately faced Canada again, this time losing 4–7 to earn the silver medal.

[47] Thiesse returned to the St. Paul Cash Spiel and successfully defended her previous year's title, only losing one game throughout the tournament.

The Anderson twins left to join Jamie Sinclair, replaced by Madison Bear at lead and Vicky Persinger at third, and Jenna Martin moved to second.

[70] Thiesse and Persinger took the third and second spots on Team Sinclair, respectively, while Sarah and Taylor Anderson, who had previously played those positions, moved up to lead and alternate.

The team ended the abbreviated season by winning the 2021 United States Women's Curling Championship, which was held in May that year, after being postponed from February.

Thiesse finished the round robin with a 5–1 record, and won both of her playoff games, including defeating her former skip Jamie Sinclair in the final.

[83] In the new year, the team went undefeated to claim the 2023 United States Women's Curling Championship, defeating Delaney Strouse 8–5 in the final.

[85] The team ended their season at the 2023 Players' Championship and the 2023 Champions Cup Grand Slam events where they reached the quarterfinals and semifinals respectively.

[87] They also had a semifinal finish at the 2023 Stu Sells Oakville Tankard and a quarterfinal appearance at the 2023 Curlers Corner Autumn Gold Curling Classic.

After a semifinal loss to Japan's Satsuki Fujisawa, Team Peterson bounced back to claim the bronze medal, stealing in an extra end to defeat Canada's Kerri Einarson.

[90] At the 2024 United States Women's Curling Championship, the Peterson rink lost their first game to Sarah Anderson before running the table the rest of the event.

In the final, they doubled up on Team Anderson 10–5 to defend their title as national champions and qualify for the 2024 World Women's Curling Championship.

[93] At the 2023 United States Mixed Doubles Curling Championship, the pair went undefeated to win the gold medal, defeating former teammate Sarah Anderson and Andrew Stopera in the final.