DURHAM, N.C., JULY 15 -- Marine Corps Cpl. Craig Pittman of Quantico, Va., dropped out of the freestyle wrestling tournament at the U.S. Olympic Festival today after twice defeating third-seeded Dean Hall in the 286-pound class.

During Tuesday evening's match against Hall, the second in their best-of-three series in the first round, Pittman crashed into a table beyond the mat, injuring his back and both shoulders. He is the second seed in his class in the Greco-Roman tournament that will begin Friday and said he does not want to jeopardize his chances.

An interesting development took place in the swimming competition tonight -- a tie. Since computers have crept into athletics, ties don't officially exist anymore. But at Koury Natatorium tonight, Mark Thompson of Tigard, Ore., and Bart Pippenger of Kamiah, Idaho, were credited with the same time in co-winning the men's 100-meter butterfly.

"This is my first tie, though I've lost one that ended like this," said Thompson, 17.

Officials can usually find a hundredth or a thousandth of a second difference in the finish, but not tonight. Thompson and Pippinger were timed in 55.99, seven tenths of a second off the meet record.

Sarah Anderson remained undefeated through the second evening of swimming. She followed last night's victories in the 200-meter freestyle, in which she set a festival record, and as a member of the record-setting North 800-meter freestyle relay team, with a five-second victory in the 800 freestyle and another as anchor on the 400 freestyle relay team.

Her margin of victory in the 800 translates into more than five body lengths. "I came into the festival not even expecting to place very well here," she said. "I got here and got caught up in all the excitement."

Anderson steadily built her lead over runner-up Sheri Smith after they turned together at the first wall.

Kristi Kiggans and Liz Nelson came from the outside, or slower-seeded, lanes to win the 200 butterfly and 50 freestyle, respectively, in the first two swimming events of the night.

In the 400 individual medley, Charles Morton, who won the 200 medley Tuesday night in a national 15-16 age-group record, first trailed Steve Herron and then Derek Weatherford through the first two legs of the race, the butterfly and backstroke. He took the lead on the breaststroke leg and, at the start of the freestyle leg, had a two-second advantage. He won in 4:29.21, six one-hundredths of a second off the meet record.

"It really helped to have Weatherford and Herron there," Morton said. "I probably went a lot faster then I would have if they weren't."

Thirteen-year-old Mary Petry of Annapolis and the Bowie Bulldogs swim team improved with distance. She finished fourth in the 100-meter butterfly Tuesday but, in the 200 butterfly tonight, nearly pulled off a victory.

Kiggans maintained a record-setting pace through three of the four lengths in the race and finished within one second of the record with a time of 2:15.78.

Petry fell off the pace slightly on the third lap, allowing Kiggans and Tuesday's 100 butterfly champion LaDonnis Loury to pull away. But Petry closed the gap on the final lap, coming within a tenth of a second of Loury, 2:16.23-2:16.34.

Bryan Nicosia of Ashton, Md., who failed to come up to his expectations Tuesday, nearly pulled off a victory today. Tuesday, Nicosia finished fourth in the 100 breaststroke in 1:07.37. But the 200 suits him better -- he's already qualified for the Olympic trials in the event -- and he demonstrated why tonight, going through the first 100 of the race in 1:07.9.

"I didn't want to admit to myself that I felt bad yesterday because I wanted to swim fast, but I felt stronger today," he said. "Today, I wanted a medal so I decided to take off fast.

"But I was hurting towards the end and Andy {O'Grady} brought it back strong."

O'Grady, who will enter UCLA with Nicosia in the fall, won, 2:23.08-2:24.67.

Nadine Takai of Hawaii continued her comeback from a year-long string of injuries, winning her second event as she came within a second of the festival record in the women's 200 individual medley. Takai came back after a slow butterfly leg to take the lead on the backstroke, winning in 2:20.94.

Takai won the 400 medley Tuesday night.

Boxer James Harris of Washington, D.C., will not compete in the festival for medical reasons. Harris' father and coach, Ham Johnson, told the USA Amateur Boxing Federation that Harris has a nose injury. Officials have decided not to fill his spot in the light flyweight (106-pound) division, thereby providing a bye into the finals for Michael Carbajal of Phoenix.