ACQUIRED: The club acquired his MLS Homegrown Player rights from D.C. United in exchange for $100,000 General Allocation Money in 2018, $100,000 Targeted Allocation Money in 2019, a 2018 international spot and a second-round pick in the 2020 MLS SuperDraft on January 23, 2018.
2020: Made a substitute appearance in a 3-1 loss to Minnesota United FC on March 1.
2019: On loan from the Timbers, delivered his team-leading ninth assist of the season in a 4-3 home loss against San Antonio FC on October 11 ... Recorded an assist in a 2-1 home loss against Austin Bold FC on Sept. 29 … Made a substitute appearance in a 2-2 home draw against New England Revolution on Sept. 25 … On loan from the Timbers, scored a goal in a 6-3 home win against Tacoma Defiance on Sept. 20 … Recorded his seventh appearance across competitions in a 1-0 home loss against D.C. United on Sept. 15 …Earned his first MLS start at home in a 2-1 win against Sporting Kansas City on Sept. 7, and was named to MLS’ Team of Week bench for Week 27 ... Logged his fourth league appearance as a second-half substitute in a 1-0 win over Real Salt Lake on Aug. 31 ... On loan from the Timbers, recorded his 16th league start in a 1-0 away loss against Las Vegas Lights FC on Aug. 24 … Recorded 90 minutes of play in a 2-2 road draw against Colorado Springs Switchbacks FC on Aug. 7 ... Started and played 90 minutes for T2 against LA Galaxy II on July 28 ... Started and played 90 minutes in a 2-1 away loss against Fresno FC on July 20 ... Started and played 90 minutes in a 1-0 away loss against Sacramento Republic SC on July 13 ... Earned his first career MLS start in a 2-1 road loss at the Montreal Impact on June 26 ... Made a substitute appearance in a 4-0 home win against the Houston Dynamo on June 22 ... Made a substitute appearance in a 4-0 home win over the LA Galaxy in the Round of 16 of the Lamar Hunt U.S. Open Cup on June 19 ... On loan from the Timbers, logged his third goal of the season in a 2-2 away draw against Austin Bold FC on June 8 … Made his Major League Soccer debut, coming on as a second-half substitute in a 3-1 away win against the Philadelphia Union on May 25 … On loan from the Timbers, Williamson recorded his team-leading seventh assist of the season in a 4-1 away win at Tacoma Defiance on May 12 ... Logged one assist, his sixth of the season, in a 2-1 home loss against Rio Grande Valley FC Toros on April 30 … Notched his first career brace in a 3-3 draw at New Mexico United on April 26, earning USL Championship Team of the Week honors (Week 8) ... Played 90 minutes in a 2-2 draw against Colorado Springs on April 20 ... Started and logged 90 minutes in a 1-0 home win against Sacramento Republic FC on April 13 ... Played 90 minutes and logged one assist in a 3-2 win at OKC Energy FC on April 6 ... Recorded two assists against LA Galaxy II on March 30, earning USL Team of the Week honors ... Started and played 90 minutes in a 3-1 win at San Antonio FC on March 16, providing one assist, his second of the season ... Started and tallied an assist in 90 minutes played in his USL season debut in T2’s 1-1 draw at Tulsa Roughnecks FC on March 9.
2018: In his Timbers debut, Williamson logged 44 minutes as a second-half substitute in a 2-0 win over San Jose in the U.S. Open Cup on June 6 ... Made 15 appearances (15 starts) for T2 during the 2018 USL regular season, tallying three goals and four assists while on loan from the Portland Timbers ... Made his 15th start of the USL season in T2’s 2-1 win against San Antonio FC on Aug. 15 ... Played 90 minutes for T2 in a 4-2 loss against Fresno FC on July 8 ... Named to the Timbers’ 18-man roster in a 1-1 draw against the Galaxy on June 4 ... Played 45 minutes for T2 in an international friendly against FC Saint Pauli on May 22 ... Scored his first professional goal, tallying the game-winning goal for T2 in a 1-0 win over Seattle Sounders FC 2 on May 12 ... Recorded a start for T2 in the team’s 3-0 win against OKC Energy FC on April 7 ... Played 90 minutes for T2 in a 1-0 win against Colorado on March 24.
COLLEGE: Spent three seasons playing at the collegiate level with the University of Maryland, recording 14 goals and 13 assists in 58 appearances during that three-year span ... In 2017, he started in 18 games for the Terrapins, tallying a team-high six goals and also adding five assists ... Was named 2017 Big Ten Midfielder of the Year and was also named to the United Soccer Coaches All-America third team, All-Midwest Region second team and the All-Big Ten first team.
INTERNATIONAL: Was called in by the U.S. U-23 Men’s National Team for a domestic training camp from June 9-16 in Herriman, Utah ... Was called into a combined preparation camp with players from the U.S. Senior and U-23 Men’s National Teams from May 26-June 2 in Annapolis, Md. ... Played 45 minutes as a second-half substitute for the U.S. U-23 Men’s National Team against Egypt on March 22 ... Appeared in 12 matches (10 starts) for the U-20 U.S. Men’s National Team, recording one goal and two assists ... While competing at the U-20 FIFA World Cup in the summer of 2017, he started four of the five matches, helping the U-20 USMNT advance to the quarterfinals of the tournament ... Has also featured for the U-18 U.S. Men’s National Team.