One week after Wilma Nielsen broke the school record , Oregon’s formidable team of distance runners continued to take aim at the top mile times in program history. Led by standout performances from Silan Ayyildiz and Simeon Birnbaum, the Ducks had an impressive weekend in Fayetteville, Ark., during the two-day Razorback Invitational indoor track and field meet at the Randal Tyson Track Center. Ayyildiz ran the second-fastest women’s mile time in school history Saturday afternoon as she crossed in a personal-record 4 minutes, 27.84 seconds. The only other Duck who has run under 4:30 is Nielsen, who clocked a…..