POWER BOAT RACING June 27: The unlimited hydroplanes take to the Detroit River for power boat racing's premier event of the year: The Gold Cup. Action begins at noon, and free vantage points are located along the Belle Isle beach and on the MacArthur Bridge. Grandstand tickets are also available at $5 and can be obtained in advance from Hudson's Ticket Service.
MAJOR LEAGUE BASEBALL June 28, 29, 30: After an 11-day road trip, the Detroit Tigers return home for a three game series with the Eastern Division leading New York Yankees at Tiger Stadium. Each game begins at 8 pm. $4.50-$1.50. 963-9944.
July 3-4: The Baltimore Orioles are in town for a two-game holiday weekend series with Tigers. Saturday's game begins at 8pm while Sunday's starts at 1:30 pm.
HORSE RACING Thoroughbred Racing: Hazel Park, 3:30 pm Monday thru Friday, 2:30 pm Saturday, $2.00 thru July 18. 398-1000. Harness Racing: Wolverine Raceway, 8 pm Monday thru Saturday, $3-$2 thru July 17, 421-7170.