Career Bests
| Event | Time | Date | Competition |
| 50 Free | 19.17 | 3/03/21 | Big Ten Championships |
| 100 Free | 42.90 | 3/06/21 | Big Ten Championships |
| 200 Free | 1:38.48 | 2/21/18 | Big Ten Championships |
| 500 Free | 4:46.68 | 1/19/18 | Bloomsburg |
| 100 Back | 47.61 | 3/05/21 | Big Ten Championships |
Career Accolades
- CSCAA All-American (2020).
- NCAA Championships qualifier in the 200 free relay (2020).
- Big Ten finalist in the 50 free (2019, 20).
- Ranks as the third-fastest performer at Penn State all-time in the 50 free (19.40).
- Ranks as the seventh-fastest performer at Penn State all-time in the 100 free (43.72).
- Ranks as the ninth-fastest performer at Penn State all-time in the 100 back (48.12).
- Member of Penn State’s school-record 200 free relay team (1:17.04) and fifth-fastest relay team (1:18.26).
- Competed at 2019 Phillips 66 Nationals.
- NCAA Championships qualifier in the 200 medley relay, 200 free relay, and 400 medley relay (2022).
National
- Phillips 66 Nationals (2019): Swam an Olympic Trials cut and placed 11th in the 50m free (22.47).
2020-21 (Senior Year)
- at Ohio State (1/16): Earned a pair of wins in the 50 free (19.85) and 100 free (44.62) and assisted in the winning 200 medley relay (1:27.68) and 400 free relay teams (2:58.51).
2019-20 (Junior Year)
- Awards: CSCAA All-American.
- NCAA Championships: Qualified for the NCAA Championships 200 free relay...Championships canceled due to COVID-19 pandemic.
- Big Ten Championships (2/26-2/29): Member of the 200 free relay team that broke a school record with a time of 1:17.38...Finished fifth with a career-best time in the 50 free (19.40), ranking him third-fastest in school history...Scored in the 100 back with a 21st-place finish (48.69) and swam a personal-best in prelims (48.12).
- St. Bonaventure (10/4): Placed second in the 200 free (1:40.03)...Member of the winning 100 medley relay (41.34) and 200 medley relay teams.
- West Virginia (10/11): Touched first in the 50 free (20.05) and second in the 100 free (44.89)...Member of the winning 200 medley relay team (1:28.73).
- Ohio State/Virginia Tech (11/1-11/2): Won the 50 free (19.78) with an NCAA B-Cut time and placed third in the 100 free (44.59)…Was a member of the winning 200 medley relay team (1:28.52).
- Big Al Invitational (12/6-12/8): Earned top-five finishes with career-best and NCAA B-cut times in the 50 and 100 freestyles…Finished third in the 50 free (19.42) and fifth in the 100 free (43.72)…Placed sixth in the 100 back (48.65) with a personal-best time in the prelims.
- at Bloomsburg (1/17): Placed second in the 200 free (1:42.11)...Member of the winning 200 medley relay team (1:31.66).
- Villanova (1/31): Placed second in the 100 back (50.30)...Member of both the winning 200 medley relay (1:27.90) and 200 free relay teams (1:19.72) that set new pool records.
- Last Chance Meet (3/7): Set school-record in the 200 free relay with an A-cut and school record time of 1:17.04.
2018-19 (Sophomore Year)
- Big Ten Championships (2/27-3/2): Achieved the NCAA B-cut in the 50 free on a pair of swims, placing eighth in the event (19.75) after earning a season-best time of 19.52 in the preliminary round…Also earned a season-best time in the 100 free (44.39).
- George Washington (10/12): Won the 50 free (20.74) and placed second in the 100 back (50.05).
- Big Al Open (11/9-10): Tied for third in the 50 free (20.56) and placed sixth in the 100 free (45.37).
- at Navy/vs. UNC (1/12): Placed second in the 50 free (20.42).
- West Virginia (1/18): Placed second in the 100 free (45.58).
- Bloomsburg (1/19): Placed first in the 100 back (50.43).
- at Villanova (2/1): Finished third in the 200 back (52.96) and second in the 50 free (20.51).
2017-18 (Freshman Year)
- Swam season bests in the 50 (20.34), 100 (44.65) and 200 (1:38.48) frees at the Big Ten Championships.
- Placed third in the 200 free (1:41.68) against Villanova (2/2).
High School
- Moved to the U.S. from Scotland in 2015 and began competitive swimming career.
- Two-year letterwinner swimming at Foster High School for head coach Christopher Slay.
- District champion and regional runner-up in the 50 free and district and regional champion in the 100 back as a senior.
- Also district MVP as a senior.
- Set school records in the 200 free (1:42:48), 100 Back (51.81).
- Also swam for Katy Aquatics and was a finalist in the 400 medley and free relays at the Speedo Junior National Championships.
- Honor graduate.
Personal
- Full name is William Silas Roberson.
- Born August 10, 1999 in Houston, Texas.
- Son of Mark and Maryellen Roberson.
- Has two younger sisters, Katie and Briana.
- Enjoys video games.
- Majoring in Material Science and Engineering