Career Highlights
Two-time WCGA Scholastic All-American
2026 Big Ten Sportsmanship Award
2025 Big Ten Distinguished Scholar Award
Two-time Academic All-Big Ten honoree
2024 All-Pac-12 in the all-around
Three-time Pac-12 Freshman of the Week honoree
2020 U.S. National Team member
2022 U.S. Classic floor champion
Five-time U.S. Championships qualifier
Best Marks
V - 9.900, 4x, last 4/5/26
UB - 9.925, 2/04/24
BB - 9.950, 3/16/24
FX - 9.950, 2/04/24
AA -39.550, 3/23/24
2026
Big Ten Sportsmanship Award winner … Academic All-Big Ten selection … Competed in the all-around in four meets, averaging 39.150 … Recorded season-highs on vault and beam at the NCAA Regional Final with a pair of 9.900s … Tied for second on vault with a season-high-tying 9.875 while also recording leadoff marks of 9.850 on beam and 9.900 on floor against Michigan on Feb. 14 … Had strong performances at Minnesota on Feb. 7, scoring a leadoff 9.900 on floor and matching season-highs on vault (9.875) and beam (9.900) … Earned season-high 9.925 in the leadoff spot to tie for third on floor Jan. 30 vs. Washington … Scored a season-high 9.900 on beam vs. Nebraska Jan. 17 … Recorded season-highs in the all-around (39.325) and on each event at the Sprouts Quad (9.875 on bars, 9.825 on vault and beam and 9.800 on floor.
2025
Big Ten Distinguished Scholar Award winner … Academic All-Big Ten selection … Scored 9.8625 or higher on five of six routines at the NCAA Championships, including a season-high 9.8875 on floor to lead off the Team Final … Contributed six routines of 9.800 or higher at the NCAA Regionals, including three 9.850s … Scored season-highs of 9.925 on beam and 9.875 on floor at the Big Ten Championships … Hit all three exhibition routines at Utah, scoring 9.875 on beam, 9.850 on bars and 9.800 on floor … Hit beam and tied her season-high on floor with a 9.825 in exhibition routines Feb. 14 and scored a season-high 9.850 on floor in an exhibition on Feb. 23 at Michigan … Tied for second on bars and third on beam with scores of 9.900 and added a 9.825 on floor at the Sprouts Collegiate Quad.
2024
WCGA Scholastic All-American … Honorable Mention All-Pac-12 in the all-around … Three-time Pac-12 Freshman of the Week (1/31, 2/6, 3/12) … Competed on at least two events in all 13 meets and averaged 39.436 in the all-around and over 9.8 on all four events, including 9.875 on floor and 9.866 on vault … Finished fourth in the all-around at the Pac-12 Championships with a career-high score of 39.550 … Captured her first collegiate victories at Arizona State, winning the all-around (39.450) and vault (9.900) … Recorded season-highs of 9.950 on beam and floor, 9.925 on bars and 9.900 on vault … Selected to the Pac-12 Freshman Watch List.
Club
Member of the 2020 USA National Team … Five-time US Championships qualifier … Finished first on floor exercise, third in the all-around and seventh on beam at the 2022 U.S. Classic … Earned a Top 10 all-around finish at the 2023 Winter Cup … Placed sixth on floor exercise at the 2022 Winter Cup … At the 2021 American Classic, she placed second on floor, seventh on vault and Top 10 in the all-around … Finished third on balance beam and seventh on vault at the 2019 American Classic … Won floor and earned a Top 5 all-around finish while placing seventh on vault at the 2018 Level 10 National Championships … Placed first on floor, second in the all-around and third on beam at the 2017 Hopes Championships … Trained at Twin City Twisters.
Personal
Full name is Katelyn Elizabeth Rosen … Born in San Antonio, Texas … Parents are Laura and Stephen Rosen … Has three older brothers, Brandon, Travis, and Dawson … Chose UCLA because she has always loved the team energy, dance parties and Bruin pride, saying “”ever since I was a little kid, I’ve dreamed of having a UCLA floor routine” … Describes her greatest athletic thrill as competing in the same competition as Simone Biles and Chellsie Memmel … Interests include movies, music, going to the beach and hanging out with friends … Communication major.
Two-time WCGA Scholastic All-American
2026 Big Ten Sportsmanship Award
2025 Big Ten Distinguished Scholar Award
Two-time Academic All-Big Ten honoree
2024 All-Pac-12 in the all-around
Three-time Pac-12 Freshman of the Week honoree
2020 U.S. National Team member
2022 U.S. Classic floor champion
Five-time U.S. Championships qualifier
Best Marks
V - 9.900, 4x, last 4/5/26
UB - 9.925, 2/04/24
BB - 9.950, 3/16/24
FX - 9.950, 2/04/24
AA -39.550, 3/23/24
2026
Big Ten Sportsmanship Award winner … Academic All-Big Ten selection … Competed in the all-around in four meets, averaging 39.150 … Recorded season-highs on vault and beam at the NCAA Regional Final with a pair of 9.900s … Tied for second on vault with a season-high-tying 9.875 while also recording leadoff marks of 9.850 on beam and 9.900 on floor against Michigan on Feb. 14 … Had strong performances at Minnesota on Feb. 7, scoring a leadoff 9.900 on floor and matching season-highs on vault (9.875) and beam (9.900) … Earned season-high 9.925 in the leadoff spot to tie for third on floor Jan. 30 vs. Washington … Scored a season-high 9.900 on beam vs. Nebraska Jan. 17 … Recorded season-highs in the all-around (39.325) and on each event at the Sprouts Quad (9.875 on bars, 9.825 on vault and beam and 9.800 on floor.
2025
Big Ten Distinguished Scholar Award winner … Academic All-Big Ten selection … Scored 9.8625 or higher on five of six routines at the NCAA Championships, including a season-high 9.8875 on floor to lead off the Team Final … Contributed six routines of 9.800 or higher at the NCAA Regionals, including three 9.850s … Scored season-highs of 9.925 on beam and 9.875 on floor at the Big Ten Championships … Hit all three exhibition routines at Utah, scoring 9.875 on beam, 9.850 on bars and 9.800 on floor … Hit beam and tied her season-high on floor with a 9.825 in exhibition routines Feb. 14 and scored a season-high 9.850 on floor in an exhibition on Feb. 23 at Michigan … Tied for second on bars and third on beam with scores of 9.900 and added a 9.825 on floor at the Sprouts Collegiate Quad.
2024
WCGA Scholastic All-American … Honorable Mention All-Pac-12 in the all-around … Three-time Pac-12 Freshman of the Week (1/31, 2/6, 3/12) … Competed on at least two events in all 13 meets and averaged 39.436 in the all-around and over 9.8 on all four events, including 9.875 on floor and 9.866 on vault … Finished fourth in the all-around at the Pac-12 Championships with a career-high score of 39.550 … Captured her first collegiate victories at Arizona State, winning the all-around (39.450) and vault (9.900) … Recorded season-highs of 9.950 on beam and floor, 9.925 on bars and 9.900 on vault … Selected to the Pac-12 Freshman Watch List.
Club
Member of the 2020 USA National Team … Five-time US Championships qualifier … Finished first on floor exercise, third in the all-around and seventh on beam at the 2022 U.S. Classic … Earned a Top 10 all-around finish at the 2023 Winter Cup … Placed sixth on floor exercise at the 2022 Winter Cup … At the 2021 American Classic, she placed second on floor, seventh on vault and Top 10 in the all-around … Finished third on balance beam and seventh on vault at the 2019 American Classic … Won floor and earned a Top 5 all-around finish while placing seventh on vault at the 2018 Level 10 National Championships … Placed first on floor, second in the all-around and third on beam at the 2017 Hopes Championships … Trained at Twin City Twisters.
Personal
Full name is Katelyn Elizabeth Rosen … Born in San Antonio, Texas … Parents are Laura and Stephen Rosen … Has three older brothers, Brandon, Travis, and Dawson … Chose UCLA because she has always loved the team energy, dance parties and Bruin pride, saying “”ever since I was a little kid, I’ve dreamed of having a UCLA floor routine” … Describes her greatest athletic thrill as competing in the same competition as Simone Biles and Chellsie Memmel … Interests include movies, music, going to the beach and hanging out with friends … Communication major.