After spending the 2015 season as a practice player for LA Galaxy II, Palacios signed with United Soccer League club Portland Timbers 2 in 2016.
Palacios ended his high school career sitting second all-time in both goals and assists at San Clemente, and as a senior in 2011, helped the Tritons to their first-ever CIF Southern Section title.
He earned selections to the California Olympic Development Program (ODP) and playied alongside Zinedine Zidane at the Adidas ESP camp.
[2] After being an unused substitute in the first seven games of his freshman season, Palacios made his Cal Poly Mustangs' debut on September 25, 2011, coming off the bench in a 3–1 defeat against the Denver Pioneers.
He was one of the primary corner kick takers for Cal Poly, helping the team qualify for the Big West Conference Men's Soccer Tournament for the first time in two years.
[2] Following his freshman season at Cal Poly, Palacios played in the Premier Development League (PDL) with Orange County Blue Star.
Palacios totaled two goals and two assists from 14 games in league play, appeared in both of the Fusion's matches in the 2013 U.S. Open Cup, and came off the bench in the playoffs against Victoria Highlanders.
[29][30] In Palacios' final game with the club, against Kitsap Pumas in the Western Conference playoffs, he picked up a red card in extra time as Ventura County was eliminated in penalties.
[32] He signed with United Soccer League (USL) club LA Galaxy II as a practice player and spent the 2015 season in that role.
[33] Although Palacios was given the number 51 shirt by the team, he was not eligible to make league appearances and played his only game for the club in a postseason friendly against Sacramento Republic on November 14.
[36] He made his club and professional debut over two months later, replacing Terrell Lowe in stoppage time of a 1–0 victory against Seattle Sounders FC 2.
[1] While assigned to Camp Humphreys in Pyeongtaek, South Korea, he was chosen to represent the Army team at the 2019 Armed Forces Men's Soccer Championship.
[39] In the championship match against the United States Air Force team, Palacios scored the winning goal in second half stoppage time, giving Army a 2–1 victory and their first tournament title since 2015.