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Johns Hopkins University

Baltimore, MD 21218
Maryland Northeast
Private Medium Developing team

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Tim McCormack

Tim McCormack was named just the fourth women's lacrosse coach at Johns Hopkins on June 7, 2022. He came to Homewood from Arizona State, where he spent the last three seasons at the helm of the Sun Devils' program.


McCormack guided Johns Hopkins to a 9-9 record and the program's first appearance in the NCAA Sweet 16 since 2016. The Blue Jays won three straight games to end the regular season and secure a spot in the NCAA Tournament. JHU then upset 16th-ranked UMass in the first round of the tournament. The Blue Jays ranked 19th in the nation in assists (6.72), 21st in ground balls (18.06) and 31st in points per game (19.28).


The two-time Pac-12 Coach of the Year, McCormack has been in charge of one of the nation's biggest turnarounds. He led Arizona State to a 26-17 record in his three seasons in Tempe with back-to-back 10-win seasons in 2021 and 2022. In the two seasons prior to his arrival, the first two in program history, the Sun Devils went 12-24. McCormack has coached 10 All-Pac 12 selections, three IWLCA All-West/Midwest honorees and three USA Lacrosse Magazine All-Americans.


McCormack took over as the head coach at Arizona State in 2020 and led the Sun Devils to a 5-3 start before the season was cancelled. The Sun Devils returned with a 10-6 record in 2021 and made the program's first appearance in the Pac-12 semifinals. This past season, McCormack led ASU to an 11-8 record and its first-ever trip to the Pac-12 championship game. Under his guidance, the Sun Devils beat five ranked opponents, including four during the 2022 season, and played eight games in 2022 against teams that qualified for the NCAA Tournament.


Arizona State was ranked in the IWLCA/IL Top-25 for six straight weeks in 2022 and checked in at 23rd in the final poll of the season. It's the first time the Sun Devils have been ranked in the season's final poll. Arizona State made its first-ever appearance in the national rankings on March 29, 2021.


McCormack brought a fast-paced, up-tempo style to Arizona State that paid immediate dividends. In the COVID-shortened 2020 season, the Sun Devils led the Pac-12 and ranked 12th in the nation with 16.38 goals per game – an increase of nearly seven goals per game from the previous year. In 2021, ASU again led the conference and was sixth in the nation in scoring offense (16.44 goals/game). Last season, McCormack's squad ranked third in the Pac-12 with 13.21 goals per game.


Arizona State also showed dramatic improvement in draw controls and ground balls under McCormack's leadership. The Sun Devils ranked fourth in the Pac-12 in both categories prior to his arrival in Tempe. They ranked third in the Pac-12 in draws in 2020, second in 2021 and first in 2022. ASU also ranked in the top-10 in the nation in draws in each of the last two seasons. After finishing 2020 fourth in the Pac-12 in ground balls, Arizona State led the league in 2021 and 2022, while also ranking in the top-10 nationally.


McCormack arrived in Tempe after a six-year stint as an assistant at Northwestern, coaching the Wildcat goalies and defense. During his tenure in Evanston, the Wildcats won 81 games, made six NCAA Tournament appearances with two trips to the semifinals, and won the 2019 Big Ten Tournament title.


After graduating from the University of Massachusetts in 2012, McCormack spent one season as the head coach of the men's club lacrosse program at the University of Kentucky before joining the women's staff at Northwestern.


McCormack was a three-year starter in goal, and two-time captain, for the Minutemen. As a senior, he led UMass to a 15-1 record and the number one national ranking for the first time in program history. McCormack posted an impressive 7.09 goals against average and a .606 save percentage en route to All-CAA and USILA All-America honors. He ranks eighth in program history with 475 career saves and boasted an 8.44 goals against average and .559 save percentage in 45 career starters.


McCormack inherits a Johns Hopkins team that posted a 10-9 record and advanced to the NCAA Tournament in 2022. The Blue Jays have qualified for the NCAA Tournament in each of the last four years and seven of the last eight and had three players earn All-America honors during the recently-completed 2022 season.


A native of Long Beach, New York, McCormack graduated with a bachelor's degree in sociology from UMass in 2012. He and his wife Deanna, have a son, Mats, and daughter, Valerie.

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Dorrien Van Dyke

Dorrien Van Dyke joined the Johns Hopkins women's lacrosse team in the summer of 2022. She came to Homewood from Arizona State, where she spent three seasons on Tim McCormack's staff.


In her first season at Homewood, Johns Hopkins went 9-9 and advanced to the NCAA Sweet 16 for the first time since 2016. The Blue Jays ranked 19th in the nation in assists (6.72), 21st in ground balls (18.06) and 31st in points per game (19.28).


During Van Dyke's time in Tempe, the Sun Devils went 26-17 with back-to-back 10-win seasons in 2021 and 2022. Arizona State also made its first-ever appearance in the Pac-12 Championship game in 2022.


Van Dyke's Arizona State defense led the Pac-12 in ground balls and ranked fourth in scoring defense in 2021 (12.62) and 2022 (12.79). The squad also ranked third in caused turnovers in 2020 (7.13) and then second in 2021 (8.50) and 2022 (7.11). In addition to her work with the defense, Van Dyke made immediate improvements in the Sun Devil draw control unit. Arizona State ranked fourth in the Pac-12 prior to her arrival in Tempe. ASU ranked third (14.25) in 2020, second in 2021 (16.68) and then led the league (15.95) this past season. The Sun Devils also ranked in the top-20 in the nation in draws in each of the last two seasons.


Van Dyke began her coaching career in 2018 at Monmouth and helped the Hawks capture the MAAC regular season championship. She assisted in all day-to-day operations of the program, including planning practices and managing team travel. She worked closely with the midfielders and attackers.


Van Dyke then spent one season on the staff at James Madison, helping the defending national champions to the 2019 CAA regular season and tournament titles. While with the Dukes, she developed Maddie McDaniel into one of the premier draw specialists in the country. The First Team All-CAA selection set the school and conference single-season record with 127 draw controls.


Van Dyke turned an impressive career at Stony Brook and sits near the top of the Seawolves' record book in goals (5th • 197), assists (7th • 71), points (5th • 268) and draw controls (6th • 179). A three-time IWLCA All-Mid-Atlantic selection, she earned Third Team All-America honors as a senior. In her four years, Van Dyke led Stony Brook to a 72-12 record with four America East titles and four trips to the NCAA Tournament.


Van Dyke graduated from Stony Brook in 2017 with a bachelor's degree in business management. She is currently pursuing a master's degree in applied leadership and management from Arizona State.

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Email coach

Peter Milliman

Peter Milliman is entering his third season as the head coach at Johns Hopkins in 2023. Named the 23rd head coach in program history on April 27, 2020, Milliman came to Homewood after serving as the Richard M. Moran Head Coach of Men’s Lacrosse at Cornell University for three seasons.


In his first season at Johns Hopkins, Milliman guided the Blue Jays to their third consecutive appearance in the Big Ten Championship game, where they narrowly fell, 12-10, to top-ranked and eventual national runner-up Maryland. Johns Hopkins entered the tournament as the number six seed and upset third-seeded Penn State (15-7) and second-seeded and sixth-ranked Rutgers (12-10) to advance to the title game. In the process, Johns Hopkins became the first number six seed in Division I men’s lacrosse history to advance to its conference title game; in the history of the Big Ten, the Blue Jays became just the third six-seed in any sport to play in the conference championship game.


In Milliman’s second season, the Blue Jays bumped their win total to seven (7-9) and advanced to the Big Ten Semifinals. Johns Hopkins played the third most difficult schedule in the nation during the 2022 season.


Prior to Johns Hopkins, Milliman took over as the head coach at Cornell in 2018 and amassed a record of 28-10, including an 8-4 mark in Ivy League play. The Big Red went 13-5 in 2018, 10-5 in 2019 and were 5-0 and ranked second in the nation when the 2020 season ended.


Cornell advanced to the NCAA Quarterfinals in Milliman’s first season, when the Big Red also claimed the Ivy League Tournament title. In two-and-a-half seasons, Milliman’s team beat the top-ranked team in the nation twice and picked up three victories against teams ranked in the top two in the nation at the time of the game; included was a win against top-ranked and eventual national champion Yale in the 2018 Ivy League Championship game.


Milliman arrived at Cornell in 2014 as an assistant coach and promptly helped the Big Red to back-to-back trips to the NCAA Tournament and a combined record of 21-11. Cornell went 9-3 in Ivy League play in 2014 and 2015 and tied for first place in the final regular season standings in each of those two seasons.


Milliman served as Cornell’s defensive coordinator early in his tenure, but seamlessly transitioned to the offensive side and quickly turned the Big Red into one of the most dangerous teams in the nation. Cornell finished fifth in the nation in scoring offense in 2019 (14.3) and the Big Red were averaging 18.4 goals per game when the 2020 season ended.


Before landing at Cornell, Milliman had successful assistant coaching stops at RIT (2006, 2008), Siena (2007), and Princeton (2013). In his four seasons at those schools he helped his teams to a combined record of 45-22 with a 9-6 mark at Princeton in 2013 immediately preceding his time at Cornell.


Milliman had his first head coaching stint from 2009-12 at Division II Pfeiffer. There, he led the Falcons to a pair of appearances in the Conference Carolinas title game in 2011 and 2012 and was twice named the conference coach of the year (2009, 2011).


Milliman was a three-time All-American at Gettysburg and helped the Bullets to back-to-back appearances in the NCAA Division III Championship game during his career (2001, 2002). He finished his career at Gettysburg ranked second in school history in points (232), fifth in goals (138) and third in assists (94). He remains one of just three players in Bullet history with more than 125 goals and 90 assists.


After completing his career at Gettysburg, Milliman went on to play four seasons for the Rochester Rattlers in Major League Lacrosse. The Rattlers won the MLL title during his last season with the team in 2008.


Milliman served as an assistant coach of the United States Indoor National Team in 2019 and was the head coach of the Russian National Team in 2014, when it made its debut at the FIL World Championships. During the summer of 2022, he served as the head coach of the Iroquois Nationals Sixes Team at the World Games in Birmingham, Alabama.


A native of Rochester, New York, Milliman and his wife, Megan, have two daughters, Reese and Lake, and one son, Everett.


Megan Milliman served as the head girl’s varsity lacrosse coach at the Friends School in Baltimore in 2021 and 2022 and previously served as the head women’s lacrosse coach at Wells College.

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