2025 Baseball Roster
Petersen, Mika

Jersey Number 1
Mika Petersen
- Class:
- Junior
- Position:
- OF
- Height/Weight:
- 5-10 / 190
- Bats/Throws:
- L/L
- Hometown:
- Stamford, Conn.
- High School:
- Academy of Information Technology and Engineering
- Concentration:
- Business Economics
Bio
2025: First Team All-Ivy selection...Started all 39 games in center field…Finished the regular season as the Ivy League's overall leading hitter at .355, and led Brown with a .401 on-base percentage…Tied for third in the league with 54 hits...Also led the team with nine doubles…Tallied 21 runs scored, 20 RBIs and drew 12 walks...Added two home runs and nine stolen bases...Finished with a perfect 1.000 fielding percentage in 100 chances...Had a season-high 13-game hitting and on-base streak from Feb. 23 to March 23…Closed the season with a seven-game hitting streak…Had 16 multi-hit games, including six games with three hits…Reached base four times with three hits, three runs scored and three RBIs, including the game-winning double in extra innings at Princeton (4/20).
Summer 2024: Played for the Bristol Blues of the NECBL…Batted .311 with eight doubles and two home runs across 34 games…Drew 14 walks and had 17 RBIs…Added 10 steals.
2024: Started all 39 games in center field for the Bears…Tied for the team lead with 28 RBIs…Ranked third on the team with 42 hits and eight doubles…Second on the team with 11 stolen bases…Drew 11 walks…Tallied 11 multi-hit games…Doubled in the season opener at UT Martin to extend his on-base streak to 28 games…Had three hits and drove in three runs in a win at Stetson (3/2)…Had a grand slam home run against Holy Cross (3/19)…Tallied three hits, five RBIs and a pair of steals in a win over Cornell (5/4).
Summer 2023: Posted a .270 batting average over 37 games for the Holly Springs Salamanders of the Coastal Plain League…Scored 17 runs and drove in 14…Drew 10 walks and stole eight bases.
2023: First Team All-Ivy selection… Appeared in 34 games, making 33 starts…Served primarily as the team’s designated hitter while seeing time in the outfield…Ended the season with a 27-game on-base streak…Had a 21-game hitting streak from March 18-April 29…In Ivy League play, he finished the regular season by leading all players with a .424 batting average and 36 hits, while ranking seventh in on-base (.449) and 10th in OPS (.967)…Overall in the regular season, he finished fourth overall and tops among all rookies with a .353 batting average…Second on the team with 21 runs…Tied for the team lead with two triples…Stole five bases in six attempts…Had a hit in 27 games including 16 multi-hit contests…Picked up four hits at Columbia (3/26) and against Dartmouth (4/28)…Named the Ivy League Rookie of the Week on May 2 after going 10-for-16 with four extra base hits over four games from April 22-April 29.
Before Brown: Competed athletically for Westhill High School…2022 Perfect Game Northeast Region Preseason All-America Honorable Mention…2022 First Team All-FCIAC selection, helping Westhill to finish runner-up in the conference…2021 Second Team All-FCIAC West honoree, helping Westhill to the Class LL state championship game…2022 FCIAC Exemplary Scholar Athlete and recipient of the Fairfield County Association of Secondary School Principals Scholar Leader Award…National Honor Society and National Science Honor Society member.
- Played club ball for Baseball U CT…2021 All-Tournament Team selection at the Perfect Game 17U Northeast World Series.
- Also a decorated hockey player, playing for the CT Junior Rangers 20U team…Scored 14 points (3g, 11a) in 32 games as a defenseman in 2021-22…Two-time NCDC All-Star selection…Drafted into the USHL in 2021, the highest level of U.S. junior hockey).
Personal: Son of Constance and Jereme Petersen…Both parents graduated from Columbia University…His father, Jereme, played football and wrestled at Columbia.
Why Brown?: “I really like Brown's location in Providence, especially the food and the flexibility of the Open Curriculum is very appealing. Also being able to continue playing baseball in college for Coach Achilles and his staff is a great opportunity. The convenience of the athletic facilities being located nearby on campus also is a huge benefit.”
Summer 2024: Played for the Bristol Blues of the NECBL…Batted .311 with eight doubles and two home runs across 34 games…Drew 14 walks and had 17 RBIs…Added 10 steals.
2024: Started all 39 games in center field for the Bears…Tied for the team lead with 28 RBIs…Ranked third on the team with 42 hits and eight doubles…Second on the team with 11 stolen bases…Drew 11 walks…Tallied 11 multi-hit games…Doubled in the season opener at UT Martin to extend his on-base streak to 28 games…Had three hits and drove in three runs in a win at Stetson (3/2)…Had a grand slam home run against Holy Cross (3/19)…Tallied three hits, five RBIs and a pair of steals in a win over Cornell (5/4).
Summer 2023: Posted a .270 batting average over 37 games for the Holly Springs Salamanders of the Coastal Plain League…Scored 17 runs and drove in 14…Drew 10 walks and stole eight bases.
2023: First Team All-Ivy selection… Appeared in 34 games, making 33 starts…Served primarily as the team’s designated hitter while seeing time in the outfield…Ended the season with a 27-game on-base streak…Had a 21-game hitting streak from March 18-April 29…In Ivy League play, he finished the regular season by leading all players with a .424 batting average and 36 hits, while ranking seventh in on-base (.449) and 10th in OPS (.967)…Overall in the regular season, he finished fourth overall and tops among all rookies with a .353 batting average…Second on the team with 21 runs…Tied for the team lead with two triples…Stole five bases in six attempts…Had a hit in 27 games including 16 multi-hit contests…Picked up four hits at Columbia (3/26) and against Dartmouth (4/28)…Named the Ivy League Rookie of the Week on May 2 after going 10-for-16 with four extra base hits over four games from April 22-April 29.
Before Brown: Competed athletically for Westhill High School…2022 Perfect Game Northeast Region Preseason All-America Honorable Mention…2022 First Team All-FCIAC selection, helping Westhill to finish runner-up in the conference…2021 Second Team All-FCIAC West honoree, helping Westhill to the Class LL state championship game…2022 FCIAC Exemplary Scholar Athlete and recipient of the Fairfield County Association of Secondary School Principals Scholar Leader Award…National Honor Society and National Science Honor Society member.
- Played club ball for Baseball U CT…2021 All-Tournament Team selection at the Perfect Game 17U Northeast World Series.
- Also a decorated hockey player, playing for the CT Junior Rangers 20U team…Scored 14 points (3g, 11a) in 32 games as a defenseman in 2021-22…Two-time NCDC All-Star selection…Drafted into the USHL in 2021, the highest level of U.S. junior hockey).
Personal: Son of Constance and Jereme Petersen…Both parents graduated from Columbia University…His father, Jereme, played football and wrestled at Columbia.
Why Brown?: “I really like Brown's location in Providence, especially the food and the flexibility of the Open Curriculum is very appealing. Also being able to continue playing baseball in college for Coach Achilles and his staff is a great opportunity. The convenience of the athletic facilities being located nearby on campus also is a huge benefit.”
Brown Baseball 2025 Senior Day Video
Monday, May 05
Tuesday's 10 with Christian Keel - Baseball
Tuesday, April 15
First college dinger 🔥
Wednesday, April 02
Seven unanswered for the win ✊
Wednesday, March 26