Colorado State University Athletics
2024-25 Women's Swimming & Diving Roster
O'Neil, Rylee

Rylee O'Neil
- Position:
- Butterfly, IM
- Class:
- Senior
- Hometown:
- Fort Collins, Colo.
- High School:
- Fossil Ridge
- Prev School:
- Missouri
Bio
CSU Individual Rankings
9 | 200 IM | 2:03.63 | 2024
Career Mountain West Placings
2025
19. 200 Butterfly
20. 200 IM
2024
13. 200 butterfly
16. 400 IM
20. 200 IM
Collegiate Best Times
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200 FL | 2:01.27 | vs. Purdue/Michigan – 11/5/21
200 BR | 2:18.22 | vs. South Carolina – 1/29/22
200 IM | 2:03.04 | Mizzou Invite – 11/16/22
400 IM | 4:23.07 | Mizzou Invite – 11/17/22
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2024-25 (SENIOR): Ends her career ranking in the top 10 in the 200-yard individual medley. … Added a pair of placings at the Mountain West Championships. … Placed 19th in the 200 butterfly and 20th in the 200 IM at conference. … Won four races on the season and had a pair of career bests. … Was the Colorado State selection for the All-Mountain West Community Service team for her dedication to serving the community.
2023-24 (JUNIOR): The transfer who returned home, she progressed through the season and was a three-event placer at the Mountain West Championships. … Placed in both IMs as well as the 200-yard butterfly. … Scored in every meet during the season. … Had team top-three times in both butterfly events and the 200 IM. … Sits eighth in the program record book with a 2:03.63 in the 200 IM. … Her 2:02.24 in the 200 fly at conference ranks 10th in program history ... Earned Academic All-Mountain West and Scholar-Athlete honors.
2021-23 (Missouri): In two seasons with the Tigers, displayed her versatility in the lanes by posting strong times in the individual medley, backstroke, butterfly and breaststroke ... Logged personal bests of 2:03.05 in the 200 back, 56.72 in the 100 butterfly and a 2:03.04 in the 200 IM.
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High School: Â Set the Montana state long course record in the 400 IM, then after moving to Colorado, helped Fossil Ridge capture the 5A state championship in 2021 by placing seventh in both the 100 butterfly and 100 breaststroke, as well as turning in legs for the state champion 200 medley and 400 free relay teams.
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Personal: Born May 15, 2002 … Parents are Michael and Jennifer O’Neil
9 | 200 IM | 2:03.63 | 2024
Career Mountain West Placings
2025
19. 200 Butterfly
20. 200 IM
2024
13. 200 butterfly
16. 400 IM
20. 200 IM
Collegiate Best Times
Â
200 FL | 2:01.27 | vs. Purdue/Michigan – 11/5/21
200 BR | 2:18.22 | vs. South Carolina – 1/29/22
200 IM | 2:03.04 | Mizzou Invite – 11/16/22
400 IM | 4:23.07 | Mizzou Invite – 11/17/22
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2024-25 (SENIOR): Ends her career ranking in the top 10 in the 200-yard individual medley. … Added a pair of placings at the Mountain West Championships. … Placed 19th in the 200 butterfly and 20th in the 200 IM at conference. … Won four races on the season and had a pair of career bests. … Was the Colorado State selection for the All-Mountain West Community Service team for her dedication to serving the community.
2023-24 (JUNIOR): The transfer who returned home, she progressed through the season and was a three-event placer at the Mountain West Championships. … Placed in both IMs as well as the 200-yard butterfly. … Scored in every meet during the season. … Had team top-three times in both butterfly events and the 200 IM. … Sits eighth in the program record book with a 2:03.63 in the 200 IM. … Her 2:02.24 in the 200 fly at conference ranks 10th in program history ... Earned Academic All-Mountain West and Scholar-Athlete honors.
2021-23 (Missouri): In two seasons with the Tigers, displayed her versatility in the lanes by posting strong times in the individual medley, backstroke, butterfly and breaststroke ... Logged personal bests of 2:03.05 in the 200 back, 56.72 in the 100 butterfly and a 2:03.04 in the 200 IM.
Â
High School: Â Set the Montana state long course record in the 400 IM, then after moving to Colorado, helped Fossil Ridge capture the 5A state championship in 2021 by placing seventh in both the 100 butterfly and 100 breaststroke, as well as turning in legs for the state champion 200 medley and 400 free relay teams.
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Personal: Born May 15, 2002 … Parents are Michael and Jennifer O’Neil
21-22 Swimming Schedule Video
Monday, August 16
Colorado State Swim & Dive: Erin Popovich Speaks To Team About Confidence
Monday, November 18
Colorado State Swimming: Erin Popovich Visit
Monday, November 18
CSU Swim highlights vs. Kansas
Saturday, October 26