| Mason Geertsen | |||
|---|---|---|---|
 Geertsen with theBuffalo Sabres in 2025 | |||
| Born | (1995-04-19)April 19, 1995 (age 30) Drayton Valley, Alberta, Canada | ||
| Height | 6 ft 5 in (196 cm) | ||
| Weight | 230 lb (104 kg; 16 st 6 lb) | ||
| Position | Defence /Left wing | ||
| Shoots | Left | ||
| NHL team Former teams | Buffalo Sabres New Jersey Devils | ||
| NHL draft | 93rd overall,2013 Colorado Avalanche | ||
| Playing career | 2015–present | ||
Mason Geertsen (born April 19, 1995) is a Canadian professionalice hockey player for theBuffalo Sabres of theNational Hockey League (NHL). He was selected in the fourth round, 93rd overall, by theColorado Avalanche in the2013 NHL Entry Draft.
Geersten played bantam and midget hockey as a youth with the Leduc Oil Kings in theAlberta Major Bantam Hockey League and with the Sherwood Park Kings in theAlberta Midget Hockey League before joining major junior club, theEdmonton Oil Kings of theWestern Hockey League (WHL), with whom he was drafted 18th overall in the first round of the 2010WHL Bantam Draft.
In the following2016–17 season, Geertsen was assigned to continue with the Rampage, on October 1, 2016.[1] Used primarily in a defensive role adding physicality, Geertsen appeared in 36 games with the Rampage for 4 assists. He split the season again between the AHL and ECHL joining secondary affiliate, theColorado Eagles in time for the postseason. Geersten remained with the club through the postseason, establishing a regular spot on the defence in recording 1 goal and 4 points in 19 games to help the Eagles capture their firstKelly Cup.[2]
As an impending restricted free agent following the conclusion of his entry-level contract, Geertsen's tenure with the Avalanche ended after he was not tendered a qualifying offer on June 25, 2019.[3] As a free agent over the summer, Geertsen was invited to attend theNew York Rangers 2019 training camp. After a successful camp, Geertsen was among the Rangers second round of cuts and was signed to a one-year AHL contract with affiliate, the Hartford Wolf Pack, on September 29, 2019.[4][5]
In the2019–20 season, Geertsen established a role within the Wolf Pack's blueline as a physical stay-at-home defenceman, appearing in 60 regular season games and leading the club with 109 penalty minutes, before the season was cancelled due to theCOVID-19 pandemic. On April 23, 2020, Geertsen was signed to remain within the Wolf Pack organization, agreeing to a one-year contract extension.[6]
Entering the pandemic-delayed2020–21 season, Geersten registered one assist through four games before he was signed to a two-year, two-way contract with the NHL affiliate, theNew York Rangers, on March 4, 2021.[7]
On October 3, 2021, Geertsen was claimed off waivers by theNew Jersey Devils.[8] He made his NHL debut on October 19, 2021, in a game against theSeattle Kraken.[9] He would play 25 games for the Devils that season, and on July 13, 2022, he signed a one-year contract extension at league minimum salary to stay with New Jersey.[10]
Geertsen spent the2022–23 season with the Devils' AHL affiliate, theUtica Comets, where he set AHL career highs of 4 goals and 136 penalty minutes.
As a free agent from the Devils, Geertsen was signed to a two-year, two-way contract with theVegas Golden Knights on July 1, 2023.[11] Throughout the duration of his contract with the Golden Knights, Geertsen played the entirety with AHL affiliate, theHenderson Silver Knights of the AHL.
On July 1, 2025, on the first day of free agency, Geertsen was signed to a two-year, two-way contract with the Buffalo Sabres.[12]
Geertsen represented Canada Pacific at the2012 World U-17 Hockey Challenge inWindsor, Ontario. He was scoreless in five games from the blueline in a fifth place finish.
On November 22, 2024, ahead of the Silver Knights' annual Hockey Fights Cancer night, Geertsen released a statement announcing that he had been diagnosed withnon-Hodgkin lymphoma, a form ofblood cancer, in November 2023, adding that it was the cause of a one-month absence during the2023–24 season. After undergoing treatment through the summer of 2024, Geertsen's cancer went intoremission before the2024–25 season.[13][14]
| Regular season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | League | GP | G | A | Pts | PIM | GP | G | A | Pts | PIM | ||
| 2010–11 | Sherwood Park Kings | AMHL | 31 | 3 | 7 | 10 | 84 | 10 | 1 | 2 | 3 | 24 | ||
| 2010–11 | Edmonton Oil Kings | WHL | 3 | 0 | 0 | 0 | 2 | — | — | — | — | — | ||
| 2011–12 | Edmonton Oil Kings | WHL | 34 | 0 | 3 | 3 | 70 | — | — | — | — | — | ||
| 2012–13 | Edmonton Oil Kings | WHL | 15 | 0 | 4 | 4 | 32 | — | — | — | — | — | ||
| 2012–13 | Vancouver Giants | WHL | 58 | 2 | 8 | 10 | 98 | — | — | — | — | — | ||
| 2013–14 | Vancouver Giants | WHL | 66 | 4 | 19 | 23 | 126 | 4 | 0 | 0 | 0 | 14 | ||
| 2014–15 | Vancouver Giants | WHL | 69 | 13 | 25 | 38 | 107 | — | — | — | — | — | ||
| 2014–15 | Lake Erie Monsters | AHL | 9 | 0 | 0 | 0 | 2 | — | — | — | — | — | ||
| 2015–16 | San Antonio Rampage | AHL | 42 | 0 | 8 | 8 | 62 | — | — | — | — | — | ||
| 2015–16 | Fort Wayne Komets | ECHL | 21 | 1 | 3 | 4 | 18 | 14 | 0 | 3 | 3 | 15 | ||
| 2016–17 | San Antonio Rampage | AHL | 36 | 0 | 4 | 4 | 52 | — | — | — | — | — | ||
| 2016–17 | Colorado Eagles | ECHL | 9 | 0 | 5 | 5 | 14 | 19 | 1 | 3 | 4 | 42 | ||
| 2017–18 | San Antonio Rampage | AHL | 72 | 3 | 6 | 9 | 117 | — | — | — | — | — | ||
| 2018–19 | Colorado Eagles | AHL | 58 | 3 | 13 | 16 | 134 | 4 | 0 | 0 | 0 | 8 | ||
| 2019–20 | Hartford Wolf Pack | AHL | 60 | 0 | 8 | 8 | 109 | — | — | — | — | — | ||
| 2020–21 | Hartford Wolf Pack | AHL | 20 | 3 | 2 | 5 | 43 | — | — | — | — | — | ||
| 2021–22 | New Jersey Devils | NHL | 25 | 0 | 0 | 0 | 77 | — | — | — | — | — | ||
| 2022–23 | Utica Comets | AHL | 61 | 4 | 4 | 8 | 136 | 4 | 0 | 2 | 2 | 4 | ||
| 2023–24 | Henderson Silver Knights | AHL | 58 | 6 | 0 | 6 | 108 | — | — | — | — | — | ||
| 2024–25 | Henderson Silver Knights | AHL | 31 | 0 | 5 | 5 | 77 | — | — | — | — | — | ||
| NHL totals | 25 | 0 | 0 | 0 | 77 | — | — | — | — | — | ||||
| Year | Team | Event | Result | GP | G | A | Pts | PIM | |
|---|---|---|---|---|---|---|---|---|---|
| 2012 | Canada Pacific | U17 | 5th | 5 | 0 | 0 | 0 | 2 | |
| Junior totals | 5 | 0 | 0 | 0 | 2 | ||||
| Award | Year | |
|---|---|---|
| WHL | ||
| Ed Chynoweth Cup champion | 2012 | |
| ECHL | ||
| Kelly Cup champion | 2017 | [2] |