Video of the 1951 Seafair race, courtesy of The Seattle Times.

Steve David and the U-1 Oh Boy! Oberto outdistance the field in the final heat to win the 2009 Lamb Weston Columbia Cup on Sunday, July 26 in Kennewick, Wash.

Steve David chats with hydroracing.com after his second consecutive victory in the Columbia Cup.

Kayleigh Perkins gets her fourth victory in four races on the unlimited lights circuit. After winning on the Columbia River, she talks about the victory.

J Michael Kelly of Puyallup and U-7 Graham Trucking flip during Sunday morning's Heat 2A of the 2009 Lamb Weston Columbia Cup in Kennewick, Wash.

KEPR TV journalist Keith Leventhal caught the flip of the U-7 during Heat 2A on Sunday, July 26, 2009.

Eric Degerman and Jeff Morrow interview Ed Cooper Jr. about the damage to the U-3, which forced the piston-powered boat to withdraw.

We chat with Michael McDonnel of KONA radio, which has been covering the races since 1966. McDonnel will be on the official barge for today's Columbia Cup.

Saturday sports highlights from KEPR TV.

Thousands of people pile into the Tri-Cities for Water Follies every year, but it takes an army of volunteers to keep it afloat.

Herald sports editor Jeff Morrow and online managing editor Eric Degerman interview Ed Cooper Jr. and Mitch Evans about the 20th anniversary of the Cooper's Express winning the 1989 Columbia Cup - the last time a piston-powered hydroplane won a Columbia Cup.

This on-board video of the vintage Miss Thriftway's run on the Columbia River on Friday, July 24, 2009. In the cockpit was Lisa Brescherer, vice president of marketing for Lamb Weston.

The crew of the Oh Boy! Oberto keeps cool during the Columbia Cup with its own Slurpee machine.

Interview with J. Michael Kelly of the U-5 formulaboats.com after the Dash for Cash on July 24, 2009, at the Columbia Cup in Kennewick, Wash.

Interview with Steve David after his victory in the 2009 Dash for Cash on Friday, July 24, 2009, at the Columbia Cup in Kennewick, Wash.

Video of the 2009 Dash for Cash on Friday, July 25, 2009.

From KEPR TV.

Boeing was out testing biofuel in a hydroplane on Friday. It uses a mix of jet fuel and biofuel. The biofuel can replace kerosene.

A new group of future hydro fans is being groomed out on the Columbia River Friday, Saturday and Sunday.

Michael Garrett, director of airplane performance at The Boeing Company, talks about the biofuel that powers the U-787. The boat, driven by unlimited hydroplane racing great Chip Hanauer, reached a lap speed Friday morning of more than 150 mph in its only appearance at the Columbia Cup.

Jean Theoret talks about the disappointment of leading the championship heat of the 2008 Columbia Cup, only to damage his boat in the third lap.

Steve David and the U-6 Oh Boy! Oberto come from behind to win the 2008 Columbia Cup on Sunday, July 27. Jean Theoret and the yellow U-37 were leading for most of the race, but broken prop cost him the victory.

David Bryant of the U-10 discusses his win in the 2008 Columbia Cup Heat 3B.

Jean Theoret interview after winning 2008 Columbia Cup Heat 3A.

U-1 driver Dave Villwock talks about finishing second in Heat 3A of the 2008 Columbia Cup.

Jeff Bernard of the U-5 talks after Heat 3B of the 2008 Columbia Cup.

Steve David talks about a rough Heat 3B.

Jean Theoret uses the inside lane in the yellow U-37 Beacon Plumbing to outduel Dave Villwock and the U-1 Miss E-Lam Plus in winning heat 3A of the Columbia Cup on Sunday, July 27, 2008.

David Williams talks about the problems he had near the end of Heat 3C of the 2008 Columbia Cup hydroplane race.

J. Craig Fletcher of the UL-13 Celtic Racing talks about his heat.

Terry Troxell talks about his new ride, the UL-8 Numerica Credit Union.

Steve David, driver of the U-6 Oh Boy! Oberto, won the 2008 Columbia Cup Heat 2B.

Paul Becker of the UL-14 talks about racing on the Columbia River.

Interview with Dave Villwock, winner of the 2008 Columbia Cup Heat 2B.

Greg Hopp of the U-100 Mirageboats.com talks about the 2008 Columbia Cup.

Charles Xaudaro, driving the UL-98 Miss Atomic Screen Printing, nearly experiences liftoff in Unlimited Lights heat 2C during the Columbia Cup on Sunday, July 27, 2008.

Kayleigh Perkins, driver of the UL-72, is the reigning Unllimited Light rookie of the year, driver of the year and led the Miss Boat Electric to the top team award. Perkins, 20, is from Black Diamond, Wash.

David Williams of Renton and the the U-48 Albert Lee Presents Lakeridge Paving need some help from the rescue crew after Heat 1A of the Columbia Cup on Saturday, July 26, 2008 in Kennewick, Wash.

Jimmy King and the U-3 piston-powered Miss Hoss Mortgage Investors Too gets out for one lap Friday afternoon before returning to the Neil F. Lampson Pits in Kennewick, Wash.

David Bryant steers the U-10 Hoss Mortgage Investors during Friday qualifying on the Columbia River.

J. Michael Kelly takes the U-13 Graham Trucking out for afternoon testing Friday, July 25, 2008 on the Columbia River in Kennewick, Wash. The Columbia Cup will be run Sunday, July 27.

David Bryant tests the U-10 Hoss Mortgage Investors on Friday during testing and qualifying for the 2008 Columbia Cup.

Al Carstensen and the UL-6 Graham Well Drilling leave the Neil F. Lampson Pits and wash down a radio broadcaster in the process Friday, July 25, 2008, in Kennewick, Wash.

Dave Villwock takes the U-1 Elam on the Columbia River for Columbia Cup testing Friday morning.

Jeff Bernard and the U-5 Formulaboats.com tests on the Columbia River on Friday morning in preparation for Sunday's Columbia Cup in the Tri-Cities.

Jean Theoret takes the U-37 Beacon Plumbing out on the Columbia River on Friday morning in preparation for Sunday's Columbia Cup in Kennewick, Wash.

A beaver swims in the Columbia River.

Steve David and the Oh Boy! Oberto flies along the Columbia River.