They took part in the McCullagh International Open Meet.
There's been more win's for Loughborough's swimmers at the weekend.
Luke Greenbank won the men's 100 metre backstroke title in a thrilling final at the McCullagh International Open Meet.
He was one of five Loughborough swimmers to get gold medals on the third day of competition in Northern Ireland.
James Wilby led from start to finish to win the men's 200 metre breaststroke title.