As a Senior (2016-17)
- CSCAA Academic All-American
- Pac-12 All-Academic Second Team
- Top Times
- 200 free: 1:38.46
- 100 breast: 56.67
- 200 breast: 1:55.91
- 200 IM: 1:44.35
- 400 IM: 3:42.53
- Pac-12 Championships
- Eighth place in the 200 IM (1:45.28)
- Fourth place in the 400 IM (3:44.61)
- 10th place in the 200 breast (1:56.04)
- NCAA Championships
- 26th place in the 200 IM (1:44.71)
- 19th place in the 400 IM (3:44.09)
- 30th place in the 200 breast (1:56.52)
As a Junior (2015-16)
- CSCAA Scholar All-American
- Pac-12 All-Academic Honorable Mention
- Top Times
- 400 IM (3:43.27) at the Pac-12 Championships
- 200 IM (1:43.91) at the Pac-12 Championships
- 200 back (1:43.94) at the NCAA Championships
- Pac-12 Championships
- Sixth in the 400-yard individual medley (3:46.04)
- Fourth in the 200-yard individual medley (1:43.91)
- Third in the 800-yard freestyle relay (6:18.16)
- NCAA Championships
- 39th in 200 back (1:43.93)
- 20th in 200 IM (1:44.05)
- 21st in 400 IM (3:44.30)
As a Sophomore (2014-15)
- Top Times
- 100 free (45.17) at Art Adamson Invitational
- 200 free (1:40.45) vs. Pacific
- 100 breast (56.19) vs. USC
- 200 breast (1:56.66) at Pac-12 Championships
- 100 fly (51.02 ) vs. Pacific
- 200 fly (1:52.07) vs. Arizona
- 200 IM (1:44.67) at NCAA Championships
- 400 IM (3:43.36) at Art Adamson Invitational
- Pac-12 Championships
- 12th in 200 breast (1:56.81)
As a Freshman (2013-14)
- Top Times
- 200 free (1:41.62) vs. UC Santa Barbara
- 500 free (4:36.90) vs. UC Santa Barbara
- 100 back (50.35) vs. Indiana
- 200 back (1:48.93) vs. Arizona State
- 100 breast (55.86) at UNLV Invitational
- 200 breast (1:56.15) at Pac-12 Championships
- 200 fly (1:49.34) vs. Wisconsin
- 200 IM (1:44.05) at Pac-12 Championships
- 400 IM (3:44.47) at Pac-12 Championships
- NCAA Championships
- 39th in 200 breast (1:58.08)
- 25th in 200 IM (1:44.69)
- 25th in 400 IM (3:47.20)
- Pac-12 Championships
- Fifth in 200 breast (1:56.20)
- Fifth in 200 IM (1:44.61)
- Third in 400 IM (3:44.47)
Off The Farm
- 2013 U.S. Open
- Ninth in 400 IM
- Ninth in 200 IM
- 2012 U.S. Short Course Nationals
- Seventh in 400 IM
- 2012 U.S. Open
- Seventh in 400 IM
- 2011 USA Nationals
- 16th in 400 IM
- 2012 Junior National Champion in 200 breast
- 2012 Junior National Champion in 200 IM
- 2012 Junior National Champion in 400 IM
- Three-time U.S. Olympic Trials qualifier (200 breast, 200 IM, 400 IM)
- U.S. National Junior Team member (2011-13)
- 2011 NCSA All-Star Team
The Williamson File
- Prepped at Covington Catholic (Ky.)
- CollegeSwimming.com’s fourth-best recruit
- Two-time state champion in 200 IM
- Two-time state champion in 400 free relay
- State champion in 500 free
- State champion in 200 free
- State champion in 100 back
- State champion in 400 free relay
- Broke six-year old state record in 200 free
- Broke 19-year old state record in 400 free relay
- Broke 13-year-old record in 200 IM
- Broke 25-year old state record in 500 free
- Two-time Kentucky State Championship Swimmer of the Meet
- Three-time first team all-state (2013, 2013, 2011)
- Two-time 4th Region Swimmer of the Meet
- Three-time Cincinnati Enquirer Male Swimmer of the Year
- Broke 12 Ohio swimming records
- USA Swimming Academic All-America
- National Honor Society
- National English Honor Society
- Quill and Scroll Society for Journalism
- Son of Kenny and Cindy Williamson
- Father played baseball at Northern Kentucky
- Mother played volleyball at Clemson
- Sister, Ellen, swims at Virginia
- Distant relative of Daniel Boone
- Special Olympics volunteer
- Pianist
- Guitarist