|Date of birth:April 28, 1987|
|Place of birth: Newcastle, Wyoming|
|NFL Draft: 2011 / Round: 4 / Pick: 121|
|No regular season or postseason appearances|
|* Jacksonville Jaguars ( 2011– 2014)|
|Career highlights and awards|
|* Second-team All-Mountain West (2009, 2010)|
|Career NFL statistics as of 2017|
Prosinski was waived/injured on September 23, 2014.
Prosinski was signed by the Chicago Bears on September 29, 2015. Prosinski recorded his first career sack against the Denver Broncos on November 22, 2015. Despite allowing a 48-yard touchdown on the first drive of the game, he ended it with six tackles and a sack. The following week, he led the team in tackles with nine, while also recording his first career forced fumble.
On March 20, 2017, Prosinski re-signed with the Bears. He was placed on injured reserve on September 2, 2017. He was released on September 4, 2017. On November 30, 2017, Prosinski was re-signed by the Bears. He was placed on injured reserve on December 23, 2017, after suffering a concussion in Week 15. He was released with an injury settlement on December 28, 2017.
Prosinski attended Buffalo High School in Buffalo, Wyoming. On June 27, 2015, Prosinski married Miss Wyoming 2012, Lexie Madden.
- "2011 NFL Draft Listing" (in en). https://www.pro-football-reference.com/years/2011/draft.htm.
- Jeff McLane [@Jeff_McLane] (November 3, 2014). "#Eagles GM Howie Roseman said on WIP team will sign former #Jags S Chris Prosinski to replace LB DeMeco Ryans (Achilles), who will go on IR.". https://twitter.com/Jeff_McLane/status/529394913247780864.
- "Chicago Bears sign former Wyoming safety Chris Prosinski". http://trib.com/sports/college/wyoming/football/chicago-bears-sign-former-wyoming-safety-chris-prosinski/article_9d55a7fd-b64d-57b2-9efd-27f490b538cd.html. Retrieved December 28, 2015.
- "Prosinski making most of his chances". https://www.chicagobears.com/news/prosinski-making-most-of-his-chances-16412432. Retrieved December 28, 2015.
- Mayer, Larry (February 9, 2016). "Position focus on defensive backfield". Chicago Bears. https://web.archive.org/web/20170621235100/http://www.chicagobears.com/news/article-1/Position-focus-on-defensive-backfield/2e241c15-2a05-4d88-a66e-24fe63ee6964. Retrieved February 11, 2016.
- "Bears retain safety Chris Prosinski". https://www.chicagobears.com/news/bears-retain-safety-chris-prosinski-16964992.
- Spotrac.com. "Chris Prosinski". http://www.spotrac.com/nfl/chicago-bears/chris-prosinski/.
- Mayer, Larry (March 20, 2017). "Bears re-sign Prosinski to one-year deal". https://www.chicagobears.com/news/bears-re-sign-prosinski-to-one-year-deal-18667432.
- Mayer, Larry (September 2, 2017). "Bears reach NFL’s 53-man roster limit". https://web.archive.org/web/20180407195353/http://www.chicagobears.com/news/article-1/Bears-reach-NFL%E2%80%99s-53-man-roster-limit/b7be2dbe-3ca1-44db-854c-c477b0c70377.
- Mayer, Larry (November 30, 2017). "Bears re-sign safety Chris Prosinski". https://www.chicagobears.com/news/bears-re-sign-safety-chris-prosinski-19874515.
- "Bears place Chris Prosinski on injured reserve, sign an offensive lineman". December 23, 2017. https://www.windycitygridiron.com/2017/12/23/16814266/bears-place-chris-prosinski-on-injured-reserve-sign-an-offensive-lineman-brandon-greene-alabama.