Career Accolades
- Two-time U.S. Collegiate Nationals team champion (2025-26)
- Four-time MPSF team champion (2023-26)
- MPSF individual champion (2026: Team)
- Three-time MPSF All-Academic (2024-26)
As a Senior (2026) • National Champions
- MPSF team champion
- MPSF individual champion (Team)
- MPSF All-Academic
- Captured MPSF team title with a 206.5058 (Feb. 14-15)
As a Junior (2025) • National Champions
- MPSF team champion
- MPSF All-Academic
- Led Stanford to first place in team event in dual at Wheaton (Jan. 25)
As a Sophomore (2024)
- MPSF team champion
- MPSF All-Academic
- Guided Stanford to first place in team event (231.91) in duel against California (Feb. 24)
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
- Mother, Kim, was a platform diver for the Chinese National Team
- Father, Nate, played basketball at Colgate University and traveled the world playing against the Harlem Globetrotters as a member of the Washington Generals