Biyendolo made her international debut for the United States in 2016. She has won two Olympic medals with the team, receiving bronze atTokyo 2020 and gold atParis 2024.
Born inFresno, California to Christine and David Williams, Biyendolo attendedBullard High School where she played on the varsity team and earned all-league and all-area honors all four years.[3] She set the school record in scoring with 117 career goals (for boys or girls) and finished her high school career with 47 assists.[3] As a senior in 2011, she was named to the ESPN RISE All-American third team[3] and scored 50 goals. The same year, she helped the team to win county and section titles and was the runner-up at the regional final.[3] She was also named Player of the Year by theFresno Bee.[4]
Biyendolo attendedPepperdine University from 2011 to 2014 where she played for theWaves.[3] During her freshman season, she started in all 20 games and finished third on the team with six goals and led the Waves with eight assists. Her 20 points ranked second on the team.[3] She was namedWest Coast Conference (WCC) Freshman of the Year and earned Soccer America Freshman All-American first team, NSCAA All-West Region second team, All-WCC second team and WCC All-Freshman team honors.[3] Biyendolo set a new school record of five consecutive games with a point and tied for second with two multi-assist games.[3]
As a sophomore in 2012, Biyendolo led the Waves ranked third on the team and sixth in the league in goals (8) and points (19). She led the WCC in shots (97) and shots per game (4.6) for the second consecutive season.[3] She scored her first collegiatehat trick on October 23. Her season performance earned herNSCAA All-West Region and All-WCC first team and All-WCC first team honors.[3] In 2013, Biyendolo started the first 15 games of the season and posted 11 goals and 3 assists (25 points) before missing the last few games due to injury. She ranked first in the WCC for goals per game (0.73, also third in the school's history), tied for second in game-winning goals and third in points per game (1.67, also fourth in the school's history). She set a school single-game record for shots with 14 on September 22.[3] Biyendolo earned NSCAA All-West Region first team and All-WCC first team honors and was named the National Player of the Week by the NSCAA and CollegeSoccer360.com after scoring the game-winning goal against Wright State in August and then netting two goals and an assist against Texas A&M in early September.[3] She was also named WCC Player of the Week.[3]
Biyendolo led the Waves with 14 goals and 10 assists in 22 starts during her senior season. Her performance helped lift the team to the third Sweet 16 appearance in the program's history.[3] She was a finalist for theHermann Trophy, was named first-team All-American by the NSCAA and Soccer America as well as All-WCC first team for the third straight year.[3] Her 14 goals ranked third in the WCC and tied for second highest in the school's history. Her 38 points also ranked second in the school's history.[3] Biyendolo set a new school record for shots with 130 and ranked first in the WCC.[3] She was named WCC Player of the Week three times andTop Drawer Soccer National Player of the Week after scoring two game-winning goals.[3]
Biyendolo was one of the breakout stars of the 2016 NWSL season. She scored 11 goals which was tied withHouston Dash forwardKealia Ohai for most in the league. Biyendolo was awarded the Golden Boot as she had more assists then Ohai.[10] Biyendolo was named the 2016NWSL Most Valuable Player and was in the 2016 NWSL Best XI. In the playoffs Biyendolo scored two goals in extra time as the Flash upset the Portland Thorns in the semifinal and advanced to the Championship Game.[11] In the2016 NWSL Championship Biyendolo scored a game-tying header in the last minute of extra time to force the game to penalties. Biyendolo converted her penalty as the Flash went on to defeat theWashington Spirit.[12]
It was announced on January 9, 2017, that the Western New York Flash was officially sold to new ownership, moved to North Carolina,[13] and rebranded as theNorth Carolina Courage. Biyendolo scored 9 goals for North Carolina in 2017 and was named to the Team of the Month for April. North Carolina won the Shield in 2017 but lost to the Portland Thorns in the NWSL Championship Game.[14]
Biyendolo had a very successful 2018 season. She scored 14 goals, which was tied for second best in the league. She was named Player of the Week twice as was named to the NWSL Second XI. North Carolina won its second straight NWSL Shield and Biyendolo was named a finalist for NWSL Most Valuable Player.[15] She played every minute of North Carolina's playoff games in 2018 as the Courage won the 2018 NWSL Championship by defeating the Portland Thorns 3–0 in the final.[16]
In October 2019, Biyendolo travelled to Australia to joinW-League clubWestern Sydney Wanderers on loan.[17] In February 2020, she terminated her contract early to focus on her international career.[18]
In December 2021, Biyendolo returned to Australia, signing withMelbourne Victory as a guest player on a month-long loan.[19][20] Her loan ended on January 13, 2022.[21]
On January 12, 2023, during the NWSL Draft, Biyendolo was traded by theKansas City Current toGotham FC in exchange for the 2nd pick overall pick.[24] She opened scoring against OL Reign in thechampionship game to help her team win 2–1, becoming the league's first four-time champion.[25]
After a breakout 2016 NWSL season Biyendolo received her first call-up to theUnited States women's national team in October 2016 for a pair of friendlies againstSwitzerland.[28] She earned her first cap on October 19. Biyendolo entered as a substitute at the beginning of the second half and scored the fastest debut goal in team history as she scored 49 seconds after entering the game. Her record was broken four days later whenKealia Ohai scored 48 seconds after entering the game.[29]
In 2017 Biyendolo was named to the roster for the2017 SheBelieves Cup, where she scored the game-winning goal in a 1–0 win for the U.S. overGermany. Her goal was the only one the U.S. scored in the tournament as they finished in last place.[30] Biyendolo was called up for the2017 Tournament of Nations.[31]
In 2018 Biyendolo was named to the roster for the2018 SheBelieves Cup, where the U.S. WNT won the tournament for the second time.[32] Biyendolo played in the team's first four games of the year including all three SheBelieves Cup games, but soon fell off the national team radar. She received a call-up for a pair of friendlies againstMexico in April 2018, but didn't play in either game.[33] Biyendolo was on the 35-player provisional roster for the2018 CONCACAF Women's Championship but wasn't named to the final 20-player roster.[34]
Biyendolo during a match againstSweden, November 2019
In late 2019, after incoming head coachVlatko Andonovski took over for a retiringJill Ellis, Biyendolo was again called up to the national team. She played in both of the team's November friendlies againstSweden andCosta Rica, marking her first caps in 20 months. In her first five games back with the team, including theCONCACAF Olympic qualifying tournament, Biyendolo tallied five goals and five assists.
On July 12, 2024, it was announced that Biyendolo would replaceCatarina Macario on the roster for the2024 Summer Olympics after initially being named an alternate. In USA's 2nd game of the Olympics, facing Germany, Biyendolo was subbed on in the 2nd half where she scored the team's fourth goal of their 4-1 victory.[36][37][38] She appeared as a substitute in the gold medal game againstBrazil, which the United States won 1–0 on a goal fromMallory Swanson.[39]
Biyendolo met her husband, Marley Biyendolo, at Pepperdine.[40][41] They married on December 8, 2024.[42] Lynn started using her married name in 2025.[43]
At NWSL Media Day in January 2025, Biyendolo said about using her married name: "In the Congo, in African culture, sometimes you are gifted a name, you're gifted the last name. Clotaire, my father-in-law, his sister's last name is different than his last name, so moving forward he decided, 'I'm going to continue on and have my family have my same last name,' so Marley, my husband, and his brother have, obviously, Williams as their last name. "I think it's very cool and special. Besides only one other family in the Congo, any Biyendolo out there will be related to me and my husband and my in-laws, so that's very cool, and I do think that as cool as the Williams name is, the history of it – obviously, some slave owners at some point had that, so I think it's a very cool tradition to be able to take such a special name that was gifted to my father-in-law and have it on the back of my jersey but also have it be a part of me and part of my family, and that's the family I chose to be in."[44]
On October 25, 2025, the couple announced on Instagram that they were expecting their first child.[45]
Biyendolo appeared in a Netflix documentary series that followed the USWNT as they competed in the2023 FIFA Women's World Cup. The docuseries premiered in the autumn of 2023.[48]
^"Team News: Round 7 (W)".Melbourne Victory. January 13, 2022.Archived from the original on January 17, 2022. RetrievedJanuary 17, 2022.USWNT striker Lynn Williams has completed her loan and returned to the U.S, creating an opportunity up front.