ATHLETIC HONORS
- Tewaaraton Award Finalist (2026)
- IWLCA Defender of the Year (2026)
- Honda Sport Award Finalist (2026)
- First Team IWLCA All-American (2025, 2026)
- First Team USA Lacrosse All-American (2025, 2026)
- First Team Nike Media All-American (2025, 2026)
- Tewaaraton Award Nominee (2026)
- Tewaaraton Award Watch List (2025, 2026)
- Big Ten Defender of the Year (2025, 2026)
- NCAA Championship All-Tournament Team (2026)
- First Team IWLCA All-Mid-Atlantic (2025, 2026)
- First Team All-Big Ten (2025, 2026)
- Big Ten All-Tournament Team (2025, 2026)
- 2026 IWLCA Defensive Player of the Week (May 19)
- Big Ten Defensive Player of the Week (4-time)
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ACADEMIC HONORS
- Third Team CSC Academic All-American (2026)
- CSC Academic All-District (2026)
- IWLCA Academic Honor Roll (2026)
- Big Ten Distinguished Scholar (2026)
- Academic All-Big Ten (2024, 2025, 2026) |
Reagan O'Brien NIL Store
2026
- Started 20 games and finished with 72 ground balls, 88 caused turnovers, 16 draw controls and one assist
- Broke NCAA career record for caused turnovers (254)
- Led nation in caused turnovers and ranked fifth in ground balls
- Finished with six caused turnovers and seven ground balls in season-opening win at Liberty
- Notched six ground balls and five caused turnovers in win over #19 Loyola
- Caused six turnovers and picked up three ground balls in double-overtime win at #14 Duke
- Had five caused turnovers and three ground balls, to go with an assist in win at #14 Penn
- Picked up three ground balls and caused a turnover in loss to Georgetown
- Finished with two ground balls and a caused turnover in comeback win over James Madison
- Caused six turnovers, picked up two ground balls and controlled three draws in win over #13 Stony Brook
- Posted two caused turnovers and two ground balls in win at Rutgers
- Notched eight caused turnovers and three ground balls in win over USC
- Finished with seven caused turnovers and six ground balls in win over #25 Ohio State
- Caused four turnovers, controlled two draws and picked up three ground balls in loss to #3 Maryland
- Tallied five caused turnovers, four ground balls and a draw in loss at #11 Northwestern
- Posted four caused turnovers and picked up a ground ball in win over #6 Michigan
- Caused seven turnovers and scooped up six ground balls in overtime win at #19 Penn State
- Totaled five caused turnovers, seven ground balls and one draw in win over #21 Rutgers in B1G Quarterfinals
- Broke NCAA career record for caused turnovers against the Scarlet Knights
- Finished with three caused turnovers, four ground balls and two draws in overtime loss to #4 Maryland in B1G Semifinals
- Caused two turnovers and picked up a ground ball in NCAA First Round win over UAlbany
- Grabbed three ground balls, one draw and one caused turnover in NCAA Second Round win over #15 Army West Point
- Caused five turnovers, including two in the final 90 seconds, to go with four ground balls and two draws in NCAA Quarterfinal win over #8 Stony Brook
- Finished with five caused turnovers and two ground balls in NCAA Semifinal loss at #2 Northwestern
2025
- Started all 20 games and set NCAA single-season record for caused turnovers (103)
- Finished with one goal, five assists, 17 draw controls and team-high 65 ground balls
- 65 ground balls rank fourth in school Division I history
- Led the Big Ten and ranked third in the nation in ground balls
- Tallied three caused turnovers and one ground ball in season-opener versus #5 Florida
- Finished with five caused turnovers and a pair of ground balls in overtime versus #21 Duke
- Caused five turnovers and scooped up two ground balls at #13 Loyola
- Notched an assist, ground ball and caused turnover in overtime win over #12 Penn
- Totaled four caused turnovers and six ground balls in win at Georgetown
- Tallied two ground balls and two caused turnovers in win at #16 Stony Brook
- Finished with three caused turnovers and two ground balls in overtime win at #8 Syracuse
- Caused four turnovers and picked up two ground balls in win at #21 USC
- Tied school record with seven caused turnovers; also tallied an assist and two ground balls in win over Rutgers
- Totaled seven ground balls and four caused turnovers in win at #14 James Madison
- Caused two turnovers and picked up a ground ball in win over Oregon
- Tied schol record with seven caused turnovers and grabbed two ground balls in loss to #3 Northwestern
- Had seven caused turnovers and two ground balls in win at Ohio State
- Totaled six caused turnovers, one ground ball and one draw in loss at #17 Michigan
- Finished with six caused turnovers and four ground balls in overtime win over #25 Penn State
- Caused two turnovers and controlled three draws in loss at #7 Maryland
- Broke single-game record with 10 caused turnovers and picked up eight ground balls in win over Penn State in Big Ten quarterfinals
- Broke NCAA single-season record for caused turnovers (83) in loss to #3 Northwestern in Big Ten semifinals; finished the game with seven caused turnovers, six ground balls and two draws
- Became Hopkins’ career leader in caused turnovers against the Wildcats
- Totaled 12 caused turnovers and 10 ground balls to go with three draws and a goal in NCAA First Round win over Liberty
- Finished with six caused turnovers, four draws, three ground balls and an assist in loss to #8 Princeton in NCAA Second Round
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2024
- Played in all 20 games and started 19; finished second on the team with 38 caused turnovers
- Also finished fourth on the team with 35 ground balls
- Ranked 4
th in the Big Ten in caused turnovers per game (1.85)
- Picked up two ground balls and caused a turnover in season-opening win at #21 UAlbany
- Totaled three ground balls, three caused turnovers and an assist in loss at #14 Penn
- Finished with two ground balls and a caused turnover in win over Georgetown
- Grabbed five ground balls and caused two turnovers in win over #16 USC
- Picked up two ground balls and caused a turnover in win over Vanderbilt
- Caused three turnovers and picked up three ground balls in win over #12 Stony Brook
- Scooped up two ground balls and caused a turnover in loss at #1 Northwestern
- Tallied three caused turnovers and two ground balls in win over Ohio State
- Finished with three caused turnovers and a pair of ground balls in win over #9 James Madison
- Caused three turnovers and picked up one ground ball in win at Rutgers
- Picked up a pair of ground balls and caused two turnovers in loss to #4 Maryland
- Notched four caused turnovers and a ground ball versus #6 Michigan
- Caused two turnovers and picked up two ground balls in win at #5 Michigan in Big Ten Quarterfinals
- Finished with four caused turnovers and two ground balls at #1 Northwestern in Big Ten Semifinals
- Caused three turnovers in NCAA First Round win over #25 Fairfield
- Picked up two ground balls and caused a turnover in loss at #6 Yale in NCAA Second Round
2023
- Played in 16 games and started 10; finished with two assists, 23 ground balls and 25 caused turnovers
- 25 caused turnovers are fifth most by a freshman in JHU history
- Had three ground balls and three caused turnovers in collegiate debut versus Albany
- Followed with three ground balls and six caused turnovers at #9 Loyola
- Notched first career point, an assist, along with two ground balls and two caused turnovers versus Penn
- Finished with three ground balls and three caused turnovers in win at Georgetown
- Tallied an assist, as well as two caused turnovers at Drexel
- Had four ground balls and three caused turnovers in win at Ohio State
- Caused two turnovers in win over #16 UMass in NCAA first round
At Boston Latin
- Totaled 363 goals, 119 assists, 304 ground balls, 329 caused turnovers and 400 draws in three season
- Two-time US Lacrosse All-American; three-time EMGLCA All-Star; three-time Dual County League All-Star
- Named team MVP as a senior; also named co-MVP as a freshman and junior
- Two-time co-captain
- Named Dual County League MVP and Boston Latin Female Athlete of the Year as a senior
- Led team to state quarterfinals as a junior; first round of states as a freshman and senior
- Played eight years with Mass Elite
- Also played soccer and totaled 45 goals and 14 assists
- Two-time captain and two-time team co-MVP
- Boys Latin Golden Boot (leading scorer of boys or girls program)
- Two-time Dual County League all-star, EMGSCA All-Star
Personal
- Reagan O’Brien
- Daughter of Shayne Stump-O’Brien and Sean O’Brien
- Sister, Quinlan, also plays lacrosse at Johns Hopkins
- Grandfather, George, played football and baseball at Northwestern
- Uncle, Duke Stump, played hockey at Vermont
- Volunteer for brain cancer research, and A Shot for Life, in honor of grandfather
- Won gold medal with United States U-19 team at 2024 World Championships
- Majoring in political science with minors in financial management and entrepreneurship & management
