He was named West Coast Conference Player of the Year twice was a 2000 and 2002 NSCAA Second Team All-American.
[3] Upon graduating he traveled to Germany to join Arminia Bielefeld's reserve side.
After one season there appearing in twenty games with sixteen goals he was signed by German third-division side 1.
The next season, he was signed by Holstein Kiel where he would appear in thirty-one matches and score ten goals.
On January 12, 2007, the Crew traded Coiner, and a first round draft pick (second overall) in the 2007 MLS SuperDraft to the Chicago Fire in exchange for Andy Herron.