Preakness Crab Derby -- Local celebrities compete in a crab-racing contest, 12:30 p.m. at Lexington Market. Free. Call 410-685-6169.

Great Schooner Race -- Tall ships including the Clipper City, Lady Maryland and Nighthawk race to and from Fort McHenry from the Inner Harbor. Best view is from the Inner Harbor promenade. 3 p.m. to 5 p.m. Free.

The Preakness Pub -- Professional jockeys from Pimlico tend bar for charityfrom 5 p.m. to 8 p.m. nightly (through Friday) at the Sheraton Inner Harbor Hotel. Free Admission; buffet and drink specials.

Miller Lite Party Nites -- Annual parties on Water Street downtown continue with a performance by Love Seed Mama Jump. Begins 5 p.m. Must be 21 to enter. Cost is $3.

For details on events, call 410-837-3030