2010: Zayner made eight appearances (three starts) with Columbus before joining United in exchange for a 2012 second round MLS SuperDraft selection on 8/6. United also received a conditional 2011 fourth round SuperDraft selection in the deal. While only used sparingly by the Crew, Zayner became a mainstay of the backline for D.C. United. His versatility proved valuable, as the former Indiana player featured in both central defense and on the flanks. All told Zayer started all nine games that he played for United, registering 798 minutes on the pitch.
2009: The defender played in 20 games (16 starts) during the season, dishing out his first career assist on 5/30 against Seattle. Zayner also played a U.S. Open Cup game and two CONCACAF Champions League games (all starts).
2008: Zayner appeared in six games (two starts) for Columbus as the Crew went on to win the MLS Cup. He also played and started in Columbus' two U.S. Open Cup matches and 10 reserve games.
2007: Coming back from injury, the defender appeared in two games for the Crew, coming on as a substitute in both. He also appeared in 10 Reserve Division games for Columbus, starting seven of them.
2006: Drafted in the second round (13th overall) by Columbus in the 2006 MLS SuperDraft, Zayner suffered a torn ACL and cartilage tear in his left knee in April and was placed on season-ending injured reserve list.
2005: Starting all 17 games he played in, Zayner scored his first career goal on October 23. He was a semifinalist for the MAC Hermann Trophy and was named to the Top Drawer Soccer’s Team of the Season first team, NSCAA All-Great Lakes Region first team, and NSCAA/adidas All-America third-team. He finished his college career with 65 games (all starts), and one goal and four assists.
2004: During his sophomore season, Zayner started 23 games and helped anchor a Hoosiers defense that led the conference in nearly every defensive category. He dished out an assist on Indiana's lone goal in the national title game against UC-Santa Barbara and was named to the College Cup All-Tournament team.
2003: In his first season at Indiana University, Zayner started all 25 games and helped record 11 shutouts. He earned Co-Big Ten Freshman of the Year honors and was named to the Big Ten All-Freshman team, and Soccer America’s and College Soccer News’ Freshman All-America teams. He finished the season with one assist and was selected to the College Cup All-Tournament team.