Vercollone grew up in Pembroke, Massachusetts and attended Silver Lake Regional High School where he was a letterman in soccer and wrestling, and won All-Conference honors and All-State honors. He played college soccer for Seton Hall, where he was named to the All-Big East first team his senior season, finishing his career at with 11 goals and 24 assists.
Vercollone also played for the Cape Cod Crusaders of the USL Premier Development League, helping the team to consecutive PDL Championship titles in 2002 and 2003.
Vercollone was drafted 42nd overall in the 2004 MLS SuperDraft by the Columbus Crew, but was not offered a contract by the team. Instead, he was picked up by New England Revolution and signed to a developmental contract, but saw practically no time on the field his rookie season, playing a total of 2 minutes in two games. The Revolution released him to waivers following the 2005 season in which he played a total of 35 minutes in 3 games.
On April 10, 2006, Vercollone joined the Charleston Battery for the 2006 USL First Division season. In two seasons with the Battery, he made 66 appearances, scoring three goals and six assists for 12 points overall. In January 2008 Vercollone signed for the Richmond Kickers of the USL Second Division, and was part of the Kickers team which won the 2009 USL Second Division championship. On January 14, 2010 Richmond announced the re-signing of Vercollone for the 2010 season.
Vercollone re-signed for a fourth season with Richmond on November 10, 2010. The club signed him for the 2012 season on September 22, 2011.
On October 19, 2014 it was announced that Vercollone was the first ever signing for new United Soccer League club Colorado Springs Switchbacks.
Vercollone ended his first season with the Colorado Springs Switchbacks with 14 goals and 9 assists.
On October 26, 2015 it was announced that Vercollone was in the United Soccer League All-League Team.
On December 4, 2015 it was announced that Vercollone would return to United Soccer League club Colorado Springs Switchbacks for the 2016 United Soccer League season. On March 6, 2016 Vercollone scored 2 goals in a 3–1 victory against Colorado State-Pueblo University in a preseason game. On March 12, 2016 Vercollone scored in a 3–2 preseason victory against UCCS. On March 15, 2016 Vercollone scored in a 4–0 preseason win against Ventura County Fusion.USL Premier Development League Champions (1): 2003
USL Second Division Champions (1): 2009
United Soccer League First Team All-League (1): 2015