Career Honors
- Five-time All-American: 200 breast (2019- 12th; 2020; 2021- fifth; 2022- eighth), 400 medley relay (2021- 16th)
- 2022 CSCAA Scholar All-American
- Owns Stanford record in the 200 breast (1:51.07)
- Ranks fifth on the school record book in the 100 breast (52.06)
Lifetime Bests
- 100 Breast- 52.06
- 200 Breast- 1:51.07
- 200 IM- 1:45.11
As a Senior (2021-22)
- All-American in the 200 breast (eighth, 1:51.17)
- CSCAA Scholar All-American
- Also swam at the NCAA championships in the 200 IM (45th, 1:45.11), 100 breast (28th, 52.45)
- Scored points at the Pac-12 Championships in the 100 breast (seventh, 52.60) and 200 breast (fourth, 1:51.21)
As a Junior (2020-21)
- All-American in the 200 breast (fifth, 1:51.82) and the 400 medley relay (16th, 3:05.35)
- Also swam at the NCAA championships in the 100 breast (26th, 52.75)
- Reached the podium at the Pac-12 Championships in the 100 breast (third, 52.06), 200 breast (second, 1:51.07) and 400 medley relay (third)
- Set the school record in the 200 breast at the Pac-12 Championships, also moved to fifth in the 100 breast
As a Sophomore (2019-20)
- All-American in the 200 breast
- Scored in three events at the Pac-12 Championships: 200 breast (second, 1:53.06), 400 IM (12th, 3:50.46) and 200 IM (18th, 1:47.08)
- Swam B standards in the 200 breast and 400 IM
As a Freshman (2018-19)
- All-American in the 200 breast (12th, 1:52.93)
- At the Pac-12 Championships, took fourth in the 200 breast (1:53.75), 11th in the 400 IM (3:48.04) and 23rd in the 200 IM (1:47.96)
National Team
- Member of Team USA for the 2018-19 season
- Member of Team USA for the 2020-21 season
Prior to Stanford
- Prepped at Gonzaga Prep in Spokane, WA
- Captain of Team USA at the 2018 Junior Pan Pacific Championships (2018)
- First in the 200 breaststroke Junior World Championships (2017)
- Third in the 200 breaststroke Junior Pan Pacific Championships (2016)
- National age group record holder in the 200 meter breaststroke
- Multiple time junior national champion
- Swam for the King Aquatic Club
Personal
- Son of Mike and Yoko Roy
- Has three siblings – Allan, Rachelle, and Andrew
- Born in Osaka, Japan
- Full name is Daniel John Riku Roy