Handsor began his professional career in the Canadian National Soccer League in 1995 with the St. Catharines Wolves. In his debut season with St. Catharines he would achieve a treble – winning the Umbro Cup, League Championship, and League Playoff Championship. At the conclusion of the season he was awarded the CNSL MVP award. In 1996, he signed with the Charleston Battery of the USISL Pro League. During his tenure with Charleston he failed to feature in a single appearance; resulting in Handsor to return to the CNSL to sign with the Toronto Supra. With Supra he repeated his treble success winning all three trophies throughout the season. The following season, he signed with the Toronto Olympians of the newly formed Canadian Professional Soccer League. He assisted the Olympians in achieving an undefeated season, and secured a double by winning the Open Canada Cup. The club lost out in the playoffs to his former club St. Catharines, losing in penalties. In 1999, he returned to the USL A-League to sign with the Atlanta Silverbacks, making 17 appearances and scoring 1 goal. When the USL season concluded he returned to the CPSL to re-sign with the Olympians. He won his second Open Canada Cup with the organization by contributing a goal in a 3-0 victory over Toronto Croatia. Toronto once more went undefeated and clinched a postseason berth, in the playoff finals Handsor scored the winning goal in a 2-0 victory over Toronto Croatia. In 2000, Handsor was relegated to the bench for the majority of the season which led to his transfer to Toronto Croatia. He made his debut on August 18, 2000 against Toronto Olympians. He reached the playoff finals where he would face his former club the Toronto Olympians, where Croatia would win the match by a score of 2-1, marking his second CPSL Championship. On April 24, 2001 the Vancouver Whitecaps announced the signing of Handsor for the 2001 USL A-League season. Unfortuanelty he wouldn't feature much as he suffered a groin injury keeping him out for most of the season. In 2004, he signed with newly expansion franchise the Edmonton Aviators. Midway through the season he was transferred to the Toronto Lynx, and made his debut on July 25, 2004 in a match against Calgary Mustangs.
