Allison Updike left her mark on Azusa Pacific University.

Kelsey Hay's impact was no less significant at the University of Pennsylvania.Updike finished her collegiate career with back-to-back NCAA Division II women's javelin titles, while Hay captured the Ivy League women's championship for the third consecutive year this past spring.On Thursday night, the two will come together at the U.S. Olympic Track and Field Trials in Eugene, Oregon.Updike and Hay will be among 24 athletes vying for a spot on the team that will represent the U.S. at the Rio Olympics in August. Updike enters the competition with the 10th best mark (56.03 meters); Hay is 24th (51.17 meters).A standout at Tamaqua Area High School, where she was a state champion in the javelin her junior year, Updike broke her own NCAA Division II meet record with a throw of 56.03 meters (183 feet, 10 inches) when she won the event for the second year in a row in May.Updike has stayed on campus since wrapping up her career at Azusa, and has kept her sights set on competing on the sport's biggest stage."My focus is on the Olympic Trials. I'm coming to play," Updike said previously of the event. "I just have to trust my training. I have worked 10 months for this moment."While there was never much doubt about Updike's status for the Olympic Trials - she owns three of Division II's top-five throws all-time - Hay's fate was far less certain.Needing to be in the top 24 to advance to the University of Oregon's Hayward Field for the event, Hay sat in 26th place on the morning of June 28, the last day for athletes to accept and declare their intentions for the competition.But when Madison Wiltrout and Sophia Rivera scratched, it created an opening for Hay to realize a lifelong dream."When I looked in the morning, I was still 26th," she said. "But the track and field community - especially javelin - is pretty small, so as soon as everyone found out (Wiltrout and Rivera scratched) I had a ton of messages. I went online right away to declare and make sure I didn't miss my chance."I didn't think it would happen. But I set myself up that this would be possible. I have an opportunity to compete with the best girls in the country."Hay, who owns the Ivy League javelin record (51.17m/167-10 ft.), enjoyed a strong finish to her career at Penn, picking up wins at the USF Invite (March 11), Philadelphia College Classic (March 19) and Penn Challenge (March 26) before winning her third Ivy League title May 7.An NCAA East Preliminary qualifier, Hay said the prospect of competing at the Olympic Trials gave her plenty of extra incentive during the grind of the season."I always kept it in the back of my mind," she said. "It was definitely a motivating factor. I was determined to get there."Hay, who finished fifth at the 2011 state meet in the javelin while at Palmerton, has remained fit and focused since making her last throw for Penn, competing at various meets for the Garden State Track Club in New Jersey. Hay has also continued training at Palmerton and Jim Thorpe with Kris Hoffner, a former throwing coach.Being able to enjoy the journey with those closest to her is what means the most to Hay."That's the best part about this," she said. "My parents didn't get to go to nationals. But they'll be here (at the Olympic Trials). They've been so supportive. This isn't just for me."As for her expectations, Hay is entering the event with an open mind."I don't have anything to lose," Hay said. "I'm just going to tell myself that I deserve to be there and we'll see what happens."After a stellar career, Updike is content with enjoying the chance of a lifetime."The most I can do now is live in the present and not think about the future," she said.Qualifying takes place today at 6:30 p.m. Eastern Daylight Time (3:30 p.m. in Eugene), with the finals set for Saturday at 7 p.m. EDT.