Upcoming Event: Swimming & Diving versus Boston College on September 26, 2025 at 4 p.m. Diving / 5 p.m. Swimming

2016-17: Rounded out his junior campaign with a career-best performance in the 400 individual medley at the Nike Invitational ... Season-best time of 16:22.53 in the mile came at the NC State GAC Invitational.
2015-16: Turned in career-best mark of 4:07.04 in the 400 IM at the Carolina College Invitational ... Won the 1,000 freestyle against Old Dominion and William & Mary (11/7).
2014-15: Among the Blue Devils' top performers in the 500, 1,000 and 1,650 freestyle as a rookie … Mile time of 15:45.55 at the ACC Championship placed him 30th in the conference and ranked him seventh all-time at Duke … 1,000-yard split on that swim was good for the fourth-best mark in program history (9:25.00) … Also ranked 10th on Duke's all-time charts in the 500 freestyle with a 4:32.92 clocking in the ACC preliminaries … Finished 15th in the mile at the Nike Cup Invitational (15:50.14) … Dropped more than 22 seconds off his 1,000 freestyle time over the course of the season.
Prior to Duke: Qualified for USA Summer and Winter Junior Nationals … Four-year letterwinner at the University School of Nova Southeastern University in Fort Lauderdale … Three-time MVP of high school team … Competed for the Swim Fort Lauderdale club team … National AP Scholar.
Personal: Born Marco Antonio Imai Hosfeld on March 11, 1996 in São Paulo, Brazil … Son of Kenneth Hosfeld and Ana Imai … Has two brothers, Luiz and Peter.
Hosfeld Career Bests:
200 Free | 1:41.78 | |
500 Free | 4:32.92 | |
1,000 Free | 9:25.00 | 6th all-time at Duke |
1,650 Free | 15:45.55 | 9th all-time at Duke |
At the ACC Championships:
2015 | 30th, 1,650 Free (15:45.55) |