"We have changed the route to eliminate some hills in the vicinity of the Allens Lane turnaround," Tatreau said. "I expect that we will have some very fast times."
In order to qualify for the Olympic Trials, men must complete the 26.2-mile marathon in two hours, 20 minutes. Qualifying time for women is two hours, 50 minutes.
It is expected that the marathon runners will begin crossing the finish line at Memorial Hall on North Concourse Drive around 11:45 a.m. The race begins at Independence Hall about 9:30 a.m.
Tatreau said that he expected spectators would be all along the parade route, but that one of the best places to watch the race might be in the vicinity of the Falls Bridge.
"The runners will be passing there in the sixth, 14th and 22d miles," he said.
The 10-kilometer (about six miles) race begins at 10 a.m. at Independence Hall and will end about 10:30 a.m. at Memorial Hall, Tatreau said. The health walk, which begins at 9:30 a.m., will start and end at Memorial Hall. It is open to everyone.
The marathon runners will head west on Chestnut Street from Independence Hall to 16th Street. There, they will turn right and then head out the Parkway to West River Drive, cross the Falls Bridge and head back on Kelly Drive to the Philadelphia Museum of Art.
They will make a turn there, head up Kelly Drive again to Lincoln Drive, and out Lincoln to the turnaround at Allens Lane.
The return route is Lincoln Drive to Kelly Drive, over the Falls Bridge, down West River Drive to the Sweetbriar Cut-Off and down North Concourse Drive to the finish line in front of Memorial Hall.
The top competitors in the men's division, he said, will include Dave Patterson of Philadelphia, Tim Wuensh of St. Louis and last year's winner, Ira Meyers of Philadelphia. In the women's division, the favorite is Anne Hird of Vermont, he said.
Tatreau said about 2,000 runners would participate in the marathon. From 1,500 to 2,000 will be running in the 10-kilometer race. There is no estimate of the number that will turn out for the two-mile health walk. Information: 686-0052..