de Val has studied engineering at the Swedish Institute of Technology (KTH) in Stockholm, where she received her Master's degree in 2021.

[4] de Val played in the World Junior Curling Championships in 2014, 2017 and 2018 as a member of Team Isabella Wranå.

In 2014, her team of Isabella Wranå, Jennie Wåhlin, Elin Lövstrand, and Fanny Sjöberg had a fourth-place finish after they lost in the bronze medal game to Russia.

The team made it all the way to the final and defeated Scotland's Sophie Jackson to win the gold medal, and lost just two round robin games in the process.

The same team went undefeated the next year in the round robin but ended up losing to Canada's Kaitlyn Jones in the final.

de Val represented Sweden one more time at the juniors in 2019 as the fourth for Tova Sundberg, who threw third stones.

[17] In their first event of the 2021–22 season, Team Wranå reached the final of the 2021 Euro Super Series where they lost to Rebecca Morrison.

[20] Elsewhere on tour, the team reached the semifinals of both the Red Deer Curling Classic and the International Bernese Ladies Cup.

The revised lineup of the team saw Wranå and de Val continue at skip and third while Larsson moved up to second and Stenlund slotted in at lead.

In the first Slam of the season, the 2022 National, they finished pool play with a 2–2 record, but then lost 7–2 in a tiebreaker to the newly formed Kaitlyn Lawes rink.

[37] Back on tour, they reached the semifinals of the 2023 Western Showdown and the quarterfinals of the 2023 Masters and the 2024 International Bernese Ladies Cup.

In February, Team Wranå won their sole event title of the season after an undefeated run at the Sun City Cup.

After a 4–1 record through the round robin, they beat Korea's Gim Eun-ji in the semifinal before coming up short to Silvana Tirinzoni in a rematch of the 2023 final.

[40] Aside from women's curling, de Val also plays mixed doubles, initially with partner Oskar Eriksson.

The pair began playing together during the 2020–21 season and immediately found success by winning the 2020 Oberstdorf International Mixed Doubles Cup.

[46] They ended the tournament by defeating Canada's Kerri Einarson and Brad Gushue 7–4 in the bronze medal game.