At CMU, Bellore started at inside linebacker his freshman year and through his senior season. Bellore holds the second highest consecutive start streak at CMU with 51 games.[2] He was an All-Mid American Conference First-team selection on defense in 2008, 2009 and 2010. The Chippewas appeared in three bowl games during Bellore's career, winning one (the 2010 GMAC Bowl), only the second bowl win in CMU history. He was also selected as CMU's Defensive Player of the Year in 2008 and 2009.[3]
After going undrafted in the 2011 NFL Draft, Bellore drew interest as an undrafted free agent from over half of the teams in the NFL. He signed with the New York Jets on July 26, 2011, and was kept on the roster to start the 2011 NFL season.[6] He recorded 19 tackles in the 2011 season mainly on special teams. On October 14, 2012, Bellore caught his first career pass on a fake punt by Tim Tebow. He gained 23 yards on the play. Jets coaches looked into converting him to play fullback in training camp of 2012, but the experiment was short lived and he returned to linebacker. On January 6, 2015, Bellore was named to the 2014 Pro Football FocusAll-Pro Special Teams.[7]
In 2016, Bellore appeared in 14 games where he started a career-high 10 games and registered 82 tackles, four passes defensed and the first sack, interception and fumble recovery of his career.[9] He was placed on injured reserve on December 19, 2016, with an elbow injury.[10]
On April 3, 2017, Bellore signed with the Detroit Lions.[11] He was released on September 9, 2017, but was re-signed two days later.[12][13] Bellore began being implemented in the Detroit offense as a fullback, strictly for blocking purposes until a surprise touchdown reception against the Baltimore Ravens on December 3, 2017.[14] It was his first touchdown in his entire playing career.
On March 14, 2018, Bellore re-signed with the Lions.[15]
On May 9, 2019, Bellore signed with the Seattle Seahawks. He finished the 2019 season with two receptions for 23 yards, including a three-yard touchdown reception in a Week 16 loss against the Arizona Cardinals.[16]
Bellore was released during final roster cuts on September 5, 2020,[17] but re-signed with the team two days later.[18]
On March 18, 2021, Bellore signed a two-year deal worth $4.4 million, including $1.2 million guaranteed, to remain in Seattle.[19]
Bellore had his first pro bowl selection as a special teamer in Pro Bowl for the 2020 season. He also was selected for the second time in 2023 Pro Bowl as a special teamer.
On February 22, 2023, Bellore signed a two-year contract extension with the Seahawks.[20]
On March 11, 2024, Bellore was released by the Seahawks.[21]
