Paetsch was originally drafted in the 2nd round, 52nd overall, in
2001 NHL Entry Draft by the Washington Capitals. However, the Capitals were unable to reach a contract agreement with him, so he was put back into the draft in 2003. Paetsch was re-drafted in the seventh round, 202nd overall, by the Sabres in the
2003 NHL Entry Draft. Paetsch stepped into full-time
WHL duty with the
Moose Jaw Warriors as a 16-year-old in 1999. Paetsch was named Moose Jaw's defenceman of the year and playoff MVP after the
2000–01 season. Paetsch has also played in several national tournaments, including the 2000 Under-17 Championships and the 2000 Under-18 Four Nations Cup. In addition, he played for Team
Cherry in the 2001
CHL Top Prospects Game. Paetsch played his first professional season in
2003–04 with the Sabres
AHL affiliate, the
Rochester Americans. During the
2005–06 season, Paetsch played his first NHL game on January 7, 2006, for the Sabres and he recorded his first NHL point. Paetsch was then returned to the Americans, for the remainder of the season. Due to a plethora of injuries to defensemen during the
2006 Stanley Cup Playoffs, he was recalled to the Sabres and made his NHL playoff debut in Game 7 of the Eastern Conference Finals against the
Carolina Hurricanes. After re-signing to a one-year contract on July 14, 2005, Paetsch established himself with the Sabres in
2006–07, playing in a career high 63 games, recording 24 points. On July 31, 2007, Paetsch was re-signed to a three-year contract with the Sabres. During the
2009–10 season, Paetsch was limited to a reserve defenseman with the Sabres. On January 4, 2010, Paetsch was placed, and later cleared, on waivers from the Sabres. After 11 games with the Sabres, Paetsch was traded, along with a second round draft pick, to the
Columbus Blue Jackets for forward
Raffi Torres on March 3, 2010. On July 7, 2010, Paetsch signed with the
Florida Panthers for one year on a one-way contract worth $525,000. Not making the Panthers' squad, he was waived to the Panthers' AHL affiliate, the
Rochester Americans. On October 7, his one-way contract was traded to the
Vancouver Canucks for defenseman
Sean Zimmerman, on a two-way contract. The Canucks then loaned Paetsch and
Andrew Peters back to the Americans. On November 1, Paetsch and Peters were removed from the Amerks roster due to curfew violations, with Paetsch moving to the
Syracuse Crunch and Peters ultimately retiring. On June 21, 2011, Paetsch left the NHL to sign a one-year contract in Europe for the
2011–12 season, with EHC Wolfsburg of the
German DEL. On July 9, 2012, Paetsch signed a one-year AHL contract with the
Grand Rapids Griffins for the
2012–13 season. Paetsch won the
Calder Cup with the Griffins in
2013. On July 9, 2013, Paetsch re-signed a two-year AHL contract with the Grand Rapids Griffins through the
2014–15 season. during Buffalo Sabres Development Camp on July 1, 2024. During the 2014–15 season, Paetsch eight goals and 30 assists, in 75 games. His 30 assists ranked second on the team, and his 38 points tied for fifth overall on the team and 12th among all AHL defensemen, marking his highest-scoring season since 2005–06 with Rochester. On July 6, 2015, Paetsch signed a two-year AHL contract with the Grand Rapids Griffins. After leading the Griffins as captain to their second
Calder Cup in the
2016–17 season, before leaving as a free agent after five years with the club. On September 12, 2017, he opted to continue in the AHL in signing a one-year contract in a return to the Rochester Americans. Paetsch announced his retirement after 17 professional seasons in December 2020. On July 10, 2023, the Rochester Americans announced the hiring of Paetsch as an assistant coach. ==Personal==