High school and college

Delgado attended Irvington High School, where he was a member of the school's soccer team during his four years, and was also a kicker for their football team for two years. The team was North Coast Section champs during his junior and senior seasons. He played college soccer at Fresno State University, scoring 28 goals and registering 20 assists in 76 games during his four seasons at the school.

Professional

Delgado was drafted by the Los Angeles Galaxy of the MLS in the fourth round (48th overall) of the 2002 MLS SuperDraft,^[1] but was not offered a contract with the team. In 2002, he played five games for the Portland Timbers in the USL A-League.^[2] In 2003, he played for Syracuse Salty Dogs, and then for Rochester Raging Rhinos in 2004.

Delgado joined the Puerto Rico Islanders in 2005, being one of only two players to play in all of the 28 games of the season. Since then he has become a key figure in the Islanders' midfield. In 2008, he was named co-captain, an honor he shares with Petter Villegas. In 2008, he led the Islanders to the USL-1 Finals and the CONCACAF Champions League Quarter-finals. He became captain of the Puerto Rico Islanders for the 2009 season and remains the captain for the 2010 and 2011 seasons.^[3] Delgado re-signed with the Islanders for the 2011 season on March 24, 2011.^[4]

In 2014, Delgado played for the San Francisco Stompers of the NPSL.^[5][6]

International

Delgado was eligible to play for the Puerto Rico national football team after living and playing in the island for a couple of years. He was called up in 2008 for friendlies against Bermuda. He played on the team from 2008 to 2012 earning a total of 23 caps.

Coaching

Delgado was named head coach of Oakland Roots in the USL Championship in December 2022.^[7] Delgado and the Roots parted ways in April 2024.^[8]