Troy Michael Dayak on born January 29, 1971 in Walnut Creek, CA and attended Livermore High School.  In 1989, he attended the University of San Francisco and played soccer for one year and then signed with the San Francisco Bay Blackhawks of the Western Soccer League (WSL). At seventeen, he was the youngest player to sign with the WSL which became the American Professional Soccer League (APSL). In 1991, the Blackhawks won the APSL Championship and he was named a First Team All Star.
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In 1993, In 1993, Troy signed with the Cleveland Crunch of the National Professional Soccer League (NPSL), helping lead them to the 1993–1994 NPSL title, and in 1995, he signed with the San Jose Grizzlies of the Continental Indoor Soccer League (CISL).
In 1996, he was selected by MetroStars in second round of the Inaugural MLS Draft (19th overall). Troy, who grew up in the San Francisco Bay Area, refused to sign with the league and move his family to the New York area. As a result, he was traded by the MetroStars to the San Jose Clash (later named the Earthquakes). He was a solid starter for the Clash until, in August 1997, he suffered a violent collision snapping his head backwards. In October 1997, he underwent surgery and after a long recovery, rejoined the Clash in 1998. In 1999 Dayak signed with the San Francisco Bay Seals of the A-League. Early in the 1999 season, Dayak suffered a major knee injury but recovered. Troy rejoined the Seals for the 2000 campaign as a player and coach. He was honored that season when he made the A League all stars. In 2001 Troy was signed as new Head Coach of the San Jose Earthquakes. He lead the team to two MLS Cups in 2001 and 2003. Dayak earned the MLS Comeback Player of the Year Award in 2001. Dayak has scored eight goals and added seven assists in his seven years in the league. He later was named Head Coach of the California Cougars, in Stockton, but announced his retirement in 2005.
June 2, 2005, Dayak was the Technical Director of the Livermore Youth Soccer League in Livermore, California. He is now the Founder and Director of Coaching for West Coast Soccer Club which is rapidly becoming one of the most dominant youth soccer clubs in the country. He holds a National "A" coaching license and in 2007 earned his NSCAA Director of Coaching Certification. Troy owns a retail soccer store in Tracy, CA.
He has also provided analysis for CSN Bay Area and for the CSN California broadcasts of San Jose Earthquakes games for the 2008 and 2009 Major League Soccer seasons.
