Career
Alderson began his career with Toronto-based club Portugal Football Club in the Canadian Soccer League Reserve Division. In 2011 he joined Vancouver Whitecaps Football Club U-23. He impressed the under-23 side and appeared in two matches with Whitecaps Football Club in the 2011 Master of Library Science Reserve Division.
On November 17, 2011 it was announced that Alderson would be joining the club"s senior side for the 2012 season.
Alderson was released from his contract with Vancouver on November 14, 2014. In May 2015, Alderson joined Fortuna Düsseldorf II of the Regionalliga West.
Alderson captained the Canadian Under 17 team at the 2011 CONCACAF U-17 Championship as well as the 2011 Fédération internationale de football association U-17 World Cup. Alderson was called up to the Canadian U-20 camp on December 2, 2011 for the first formal camp in preparation for qualification in 2013.
Alderson also joined the Canadian U-23 team for Olympic Qualifying in March 2012 starting his first match against El Salvador.
Individual.