2015 Fall Back Summer National Convention National Convention 2015 hosted in Kentucky. SD4 SD4 2k15 hosted by Zeta Xi. A time for brothers and sisters across the west and all over to enjoy all San Diego has to offer on the 4th of July. Spring Retreat 2k15 Zeta Xi retreat held at Belmont Park by Mission Beach! Tye Die Bonding A Zeta Xi tye die making bonding event. First Degree Spring '15 The welcoming of a new candidate to Zeta Xi. Rushes Second and formal rush from the Spring 2015 semester. Potluck playlist and The Broken Yolk brunch.