Career Accolades
- U.S. Collegiate Nationals team champion (2025)
- Three-time MPSF team champion (2023-25)
- Two-time MPSF All-Academic (2024-25)
As a Junior (2025) • National Champions
- MPSF team champion
- MPSF All-Academic
- Guided Stanford to second place in team (239.82) event during OSU quad meet (March 2)
- Placed third in team event at MPSF Championships (Feb. 15-16)
- Aided Stanford to first place in team event in dual at Wheaton (Jan. 25)
As a Sophomore (2024)
- MPSF team champion
- MPSF All-Academic
- Aided Stanford to fourth place in team event (240.65) while placing 18th in Tech A Elements (74.67) at Collegiate Nationals (March 22-23)
- Helped Stanford to first place in team event (231.91) in duel against California (Feb. 24)
- Grabbed fourth place in team event (199.48) while earning 14th in Tech A Elements (74.28) at MPSF Championships (Feb. 17-18)
As a Freshman (2023)
- MPSF team champion
International Experience
- Has competed with USA Artistic Swimming
- 2022-Present: Senior National Team Member
- 2022 Junior Worlds (Quebec City, Canada): 6th (Tech Team)
- 2022 FINA Virtual World Series (CAN & USA): 1st (Highlight)
- 2021 Junior Pan American Games (Cali, Colombia): 2nd (Team), 2nd (Highlight)
- 2021 Junior and Youth International Open (Clearwater, Florida): 1st (Combo), 1st (Highlight)
- 2021 US Junior National Team Member
- 2020 Senior National Team Trials: 8th
- 2019 FINA Youth World Championships (Samorin, Slovakia): 8th (Team)
- 2019 U.S. 13-15 National Team Member
Prior to Stanford
- Competed with Walnut Creek Aquanuts (2015-21)
- 2021 U.S. National Championships: 1st (Free Team), 1st (Tech Team), 1st (Combo), 4th (Tech Duet), 4th (Free Duet)
- 2019 Junior Olympic Championships: 1st (Team), 2nd (Combo)
- 2019 U.S. National Championships: 1st (Team), 1st (Combo)
- 2018 U.S. National Championships: 2nd (Team)
- 2018 Junior Olympic Championships: 1st (Team), 1st (Combo)
- 2017 Junior Olympic Championships: 3rd (Combo)
- 2016 Walnut Creek Aquanuts Coaches Award
Personal
- Parents are Nate and Kim O'Neil
- Sister, Ayla, competes for the Walnut Creek Aquanuts
- Mother, Kim, was a platform diver for the Chinese National Team
- Father, Nate, played basketball at Colgate University and travelled the world playing against the Harlem Globetrotters as a member of the Washington Generals