Before BYU:
High School
- Prepped at Dimond High School under his father, coach Scott O'Brien and with Auror Swim team, coached by Cindy Pitta
- Earned Engineering Cord recognition
- Participated in baseball, robotics, and german club
- Athlete of the month on 3 different occasions
- Made All-State team
- Varsity lettered
- Swimmer of the year
- Current Records
100 Breaststroke- 57.73
200 I.M.- 1:54.55
Personal:
- Son of Scott and Anne O'Brien
- Has 1 sibling
- Majoring in Chemical Engineering