- Age
- 31
- Height
- 6′4″
- Weight
- 227 lb
- Shoots
- L
- Born
- Drayton Valley, Alberta, CAN
- GP
- 5
- G
- 0
- A
- 0
- P
- 0
- +/-
- -1
- SOG
- 1
2025–26 regular season
Drafted 2013 · Round 4, #93 overall (COL)
Advanced · 2025–26
- CF%
- 53.3
- Share of 5v5 shot attempts while on ice
- xGF%
- 45.6
- Share of 5v5 expected goals while on ice
- Rel CF%
- +7.1
- vs. team with the player off ice
- PDO
- 0.875
- On-ice Sh% + Sv% (≈1.000 is average)
- ixG
- 0.0
- Individual expected goals
- G − xG
- 0.0
- Finishing above expectation
- OZS%
- 41.7
- Offensive-zone start share
- 5v5 TOI/GP
- 4:07
- Even-strength minutes per game
Shot attempts
2 attempts, attacking the net on the right. Filled = goal; bigger = higher expected-goal value.
How Geertsen is used
#55 · L · Buffalo Sabres
Mason Geertsen
How he’s used · 2025–26 · 5 games with shift charts
- Line 4
- Ice time / game
- 4:07
- 4:07 at 5v5
- Offensive-zone starts
- 41.7%
- of his 5v5 zone faceoffs
- Expected goals share
- 45.6%
- at 5v5 with him on
- Shot attempt share
- 53.3%
- at 5v5 with him on
Shift profile · against NHL forwards
Average shift
Geertsen36.4s
NHL average47.6s
Shifts that ran 60 seconds or longer
Geertsen9%
NHL average24%
Shifts include power-play and penalty-kill time. Across the league, 5v5 shots go in nearly twice as often against a skater 80s+ into his shift.
Most-used linemates · 5v5
Beck Malenstyn11.0 min together50%shot attempts
Tyson Kozak10.3 min together47%shot attempts
Bowen Byram7.9 min together46%shot attempts
daily.hockeyUpdated after every game
| Team | |||||
|---|---|---|---|---|---|
| 2025–26 | Buffalo Sabres | 5 | 0 | 0 | 0 |
| 2021–22 | New Jersey Devils | 25 | 0 | 0 | 0 |
| Opp | TOI | ||||||
|---|---|---|---|---|---|---|---|
| Tue, Nov 4 | vs UTA | 0 | 0 | 0 | 0 | 1 | 3:49 |
| Mon, Oct 20 | @ MTL | 0 | 0 | 0 | 0 | 0 | 5:27 |
| Sat, Oct 18 | vs FLA | 0 | 0 | 0 | 0 | 0 | 2:06 |
| Sat, Oct 11 | @ BOS | 0 | 0 | 0 | 0 | 0 | 4:48 |
| Thu, Oct 9 | vs NYR | 0 | 0 | 0 | -1 | 0 | 4:26 |
| Team / League | |||||
|---|---|---|---|---|---|
| 2026–27 | Rochester Americans · AHL | 2 | 0 | 0 | 0 |
| 2025–26 | Rochester Americans · AHL | 35 | 2 | 2 | 4 |
| 2025–26 (P) | Rochester Americans · AHL | 3 | 0 | 0 | 0 |
| 2024–25 | Henderson Silver Knights · AHL | 31 | 0 | 5 | 5 |
| 2023–24 | Henderson Silver Knights · AHL | 58 | 6 | 0 | 6 |
| 2022–23 | Utica Comets · AHL | 61 | 4 | 4 | 8 |
| 2022–23 (P) | Utica Comets · AHL | 4 | 0 | 2 | 2 |
| 2020–21 | Hartford Wolf Pack · AHL | 20 | 3 | 2 | 5 |
| 2019–20 | Hartford Wolf Pack · AHL | 60 | 0 | 8 | 8 |
| 2018–19 | Colorado Eagles · AHL | 58 | 3 | 13 | 16 |
| 2018–19 (P) | Colorado Eagles · AHL | 4 | 0 | 0 | 0 |
| 2017–18 | San Antonio Rampage · AHL | 72 | 3 | 6 | 9 |
| 2016–17 | San Antonio Rampage · AHL | 36 | 0 | 4 | 4 |
| 2016–17 | Colorado Eagles · ECHL | 9 | 0 | 5 | 5 |
| 2016–17 (P) | Colorado Eagles · ECHL | 19 | 1 | 3 | 4 |
| 2015–16 | San Antonio · AHL | 42 | 0 | 8 | 8 |
| 2015–16 | Fort Wayne · ECHL | 21 | 1 | 3 | 4 |
| 2015–16 (P) | Fort Wayne · ECHL | 14 | 0 | 3 | 3 |
| 2014–15 | Vancouver · WHL | 69 | 13 | 25 | 38 |
| 2014–15 | Lake Erie · AHL | 9 | 0 | 0 | 0 |
| 2013–14 | Vancouver · WHL | 66 | 4 | 19 | 23 |
| 2013–14 (P) | Vancouver · WHL | 4 | 0 | 0 | 0 |
| 2012–13 | Edmonton · WHL | 15 | 0 | 4 | 4 |
| 2012–13 | Vancouver · WHL | 58 | 2 | 8 | 10 |
| 2011–12 | Edmonton · WHL | 34 | 0 | 3 | 3 |
| 2010–11 | Sherwood Park · AMHL | 31 | 3 | 7 | 10 |
| 2010–11 | Edmonton · WHL | 3 | 0 | 0 | 0 |
| 2010–11 (P) | Sherwood Park · AMHL | 10 | 1 | 2 | 3 |
| 2009–10 | Leduc Oil Kings Bantam AAA · AMBHL | 33 | 5 | 17 | 22 |
| 2008–09 | Leduc Oil Kings Bantam AAA · AMBHL | 27 | 0 | 2 | 2 |