For the first time since 1996 the U.S. will be able to send a full complement of three men's marathoners to the Olympics. At the trials in Birmingham last Saturday, Alan Culpepper, Meb Keflezighi and Dan Browne went 1-2-3, and all bettered the Athens qualifying standard of 2:15:00, which is a minute slower than the time needed for the 2000 Games. (Four years ago only Rod DeHaven qualified for the Games, and he finished 69th in the Olympic race in Sydney.) It is not certain, however, that Saturday's top three will all run the marathon in Athens this August. The self-coached Culpepper (2:11:42) says he will, but Keflezighi (2:11:47) and Browne (2:12:02) might abandon their spots if they qualify in the 10,000 meters at the U.S. track and field trials in Sacramento in July. If those two do step aside, Trent Briney (fourth at the trials in 2:12:35) and Clint Verran (fifth, 2:14:37) can replace them. "We haven't had as much depth in recent years," Culpepper says. "Our team is turning a corner."