Head Coach

Acacia Walker-Weinstein

Two-time U.S. gold medalist Acacia Walker-Weinstein was named the U.S. Women’s Senior National Team head coach in April 2024. Walker-Weinstein led the U.S. to the inaugural Pan-American Women's Lacrosse Championship in 2025, and then followed that by leading the U.S. to the World Lacrosse Women's Championship in Tokyo in 2026.

Walker-Weinsten, the head women’s lacrosse coach at Boston College, was just 14 years old when she tried out for the 1999 U.S. U19 team. She made the team and helped bring home a world championship from Perth, Australia. In 2009, she played on the U.S. women’s senior team that won the world championship in Prague, Czech Republic.

Walker-Weinstein has been the head coach at Boston College since the 2013 season and has transformed the Eagles into one of the nation’s elite programs. Boston College played in seven straight NCAA championship games from 2017-24, won the school’s first national title in 2021 and followed with a second championship in 2024.

Walker-Weinstein was the IWLCA National Coach of the Year in 2017 and 2021, and the BC staff was recognized in 2024. She compiled 222 wins in her first 14 seasons, including a school-record 22 in the 2018 and 2019 seasons. Three of her Boston College players — Sam Apuzzo, Dempsey Arsenault and Charlotte North — played on the 2022 U.S. women’s team that won the world championship, and another, Kristin Igoe, played on the 2013 world championship team. The 2026 U.S. team featured eight of her former BC players — Sam Apuzzo, Shea Baker, Shea Dolce, Kenzie Kent, Emma LoPinto, Charlotte North, Sydney Scales and Cassidy Weeks.

She first came to Boston College as the associate head coach, and in 2011, she helped the school reach the NCAA tournament for the first time in program history. Prior to coming to BC, she spent two seasons as the associate head coach at the University of Massachusetts, helping the team win back-to-back Atlantic 10 championships. From 2005-08, she was an assistant coach at Northwestern, helping the school win three national championships.

As a player, Walker-Weinstein was an All-American and captain at the University of Maryland, helping the Terps reach the NCAA tournament all four seasons. She spent a decade, from 2002-12, as a member of the U.S. women’s senior team.

The U.S. women’s field team has won a record 10 world championships, including the five most recent. The U.S. won the inaugural championship in 1982, followed by Australia winning in 1986. The U.S. then won four straight championships before Australia beat the U.S. in the 2005 gold medal game. Walker-Weinstein was on the 2009 U.S. team that started the current string of five straight world titles.

Assistant Coach

Melissa Lehman

Melissa Lehman is the head women’s lacrosse coach at Rutgers University. She was the Big Ten and IWLCA Mid-Atlantic Region Coach of the Year in 2022 and has led the Scarlet Knights to three NCAA tournament appearances in her first seven years after the school had qualified only once in its first 43 seasons. Rutgers reached the second round of the NCAA tournament in 2026.

She previously served as an assistant coach at her alma mater, Penn, and helped the Quakers to 10 NCAA tournament appearances and eight Ivy League titles from 2009-19. She was the IWLCA Division I Assistant Coach of the Year in 2014.

As a player, Lehman was an All-American midfielder at Penn and helped the Quakers reach the NCAA title game in 2008.

Assistant Coach

Kayla Treanor

Kayla Treanor was named the head women's lacrosse coach at Penn State in May 2025 following a four-year run as the head coach at her alma mater, Syracuse. She led Penn State to a 12-7 record in 2026 and into the NCAA tournament.

Treanor took Syracuse into the NCAA tournament in each of her four seasons, including championship weekend berths in 2023 and 2024. She previously served as an assistant coach at Harvard and Boston College, helping the Eagles reach three straight NCAA championship games and win it all in 2021 as a member of Acacia Walker-Weinstein’s staff.

As a player, Treanor was a four-time first-team All-American, three-time Tewaaraton finalist and IWLCA Attacker of the Year and finished her career with 260 goals and 393 points. She also had a tremendous run with the U.S. Women’s National Team, winning a world championship at the U19 level in 2011 and then with the senior team in 2017 and 2022. She holds five U.S. national team records, including most points in a game (12), tournament (43) and career (77). She was named to the All-World team in 2017 and 2022.

Assistant Coach

Devon Wills

Devon Wills is the head women’s lacrosse coach at Harvard University. Wills led the Crimson into three consecutive Ivy League tournament appearances from 2022-24, and her 2024 team posted the school’s first 10-win season since 2011. They followed with a 9-6 season in 2025 that included wins over three nationally-ranked teams — Connecticut, Navy and Penn. 

Wills previously served as an assistant coach at USC, Denver and her alma mater, Dartmouth. She helped USC reach three NCAA tournaments, including two quarterfinal appearances, and helped USC win a school-record 20 games in 2016.

As a player, Wills has been inducted into the National Lacrosse Hall of Fame. A three-time All-American at Dartmouth, she helped the Big Green to four straight NCAA tournaments, including the NCAA championship game in 2006 when she led the nation in goals against average (6.59). 

She helped the U.S. Women’s National Team to three world championships (2009, 2013 and 2017) — playing alongside U.S. coaches Acacia Walker-Weinstein in 2009 and Kayla Treanor in 2017 — and was named to the All-World team in 2013 and 2017. She was the MVP of the 2009 championship game.