The Reston Masters Swim Team hosted the 30th Annual Jim McDonnell Lake Swim on Sunday at Lake Audubon.

According to the team’s website, the swim — which has been held every Memorial Day weekend since 1988 — was renamed in honor of McDonnell in 1999. McDonnell, a founding member of the team who was on the committee that first organized the swim, died of non-Hodgkins Lymphoma the previous year.

More than 700 swimmers participate each year, according to the team, which makes the event the largest open-water swim in the region. Proceeds from this year’s event were donated to the Lymphoma Research Foundation and to Herndon-Reston FISH Inc.

Results from the event can be viewed here.

Photos courtesy Ryan Dawson