BALTIMORE � The UMBC swimming and diving team won 28 of the 32 events, including all four relays for the fourth time this season, as the Retrievers swept local rival Loyola, Saturday afternoon at the Mangione Pool. The men eased past the Greyhounds by a score of 181-108 to push their undefeated record to 6-0 while the women downed Loyola 165-116 to move to 5-2 this season.