• WHAT: Seattle’s Seafair Celebration, featuring the Chevrolet Cup unlimited hydroplane race. The race, sanctioned by the American Boat Racing Cup, will feature the unlimited hydroplanes, as well as the unlimited lights.

• WHEN: 8:30 a.m. to 6 p.m., Friday; 8:30 a.m. to 11 p.m. Saturday; and 7:30 a.m. to 6 p.m. Sunday.

• WHERE: Stan Sayres Pits on South Lake Washington. Also can be viewed from Genesee Park.

• NOTABLE: Last year’s Chevrolet Cup winner – Auburn’s Dave Villwock – will look to pilot the U-16 Miss Elam Plus to a repeat win and catch the U-1 Oh Boy! Oberto Miss Madison driver Steve David, who has the lead in season points. David leads Villwock by 599 points with two races left in the season. … David was the winner of last week’s Columbia Cup. Villwock finished fourth in the Tri-Cities and was penalized for a fuel flow violation. … Villwock has won nine Chevrolet Cups. … Puyallup’s J. Michael Kelly, driver of the U-7 Graham Trucking boat, will look to recover from an accident that saw his boat flip during the Columbia Cup. The Decatur, Ind.,-based team expects to have the boat repaired in time for qualifying on Friday. … Kent driver Jeff Bernard will pilot the U-5 Formulaboats.com in the Chevrolet Cup. … Driver Jimmy King will pilot the U-3 Cooper Motorsports boat, the only piston-powered unlimited. The U-3 is run by a Allison V-12 engine, originally used in World War II fighter planes.

• DON’T FORGET THE AIRPLANES: The world’s premier aerobatic precision flying team, the U.S. Navy’s Blue Angels, will return to Seafair this weekend, wowing crowds with shows at 1:30 p.m. Saturday and Sunday. The team will practice at 1:30 p.m. Friday. The KeyBank Airshow presented by Boeing will take place at 3:40 p.m. Saturday and Sunday.

• MUSIC: The Seafair celebration will feature music by The U.S. Navy Band, Massy Ferguson, School of Rock All-Stars, SHIM, Radio Nationals, Vince Mira, The Dusty 45s, Big World Breaks, Adrian Xavier and The Staxx Brothers. For a schedule of performances, visit www.seafair.com/events/

• TICKETS: Available at www.ticketmaster.com.