D · BUF · NHL id 8477419
Mason Geertsen has played 5 games for the Buffalo Sabres in 2025-26, scoring 0 goals and 0 assists (0 points) on 1 shots while averaging 4:07 a night (4:06 at even strength, 0:01 on the power play and 0:00 shorthanded). At 5v5 he has skated 53% of his 5v5 minutes with Beck Malenstyn and 50% with Tyson Kozak over the last 5 games, and the Sabres have controlled 45% of shot attempts with Geertsen on the ice (0-1 in goals, 29% offensive-zone starts).
Right now
From the Nov 4 game vs UTA, detected from shift data
No unit data for the most recent game yet. Lines appear once the game's shift data is processed.
Deployment timeline
2025-26 · per-game ice time by strength, with line and power-play unit changes
Usage: 5 games, 4:07 average time on ice, PP1 in 0 games, 0 line changes.
- Even strength
- Power play
- Penalty kill
- 5-game average
- Did not play
- ▲ promoted · ▼ demoted
NHL EDGE tracking
2025-26 percentiles among skaters at his position
Only 5 GP in 2025-26: NHL EDGE percentiles are noisy before about 15-20 games.
Season-level NHL EDGE puck and player tracking, refreshed nightly. The percentile is the league rank among skaters this season; the label at the right is the raw value.
Shot map
2025-26 · 2 attempts, 1 on goal, 0 goals
Shot map, OPP at BUF: 2 attempts, 1 on goal, 0 goals, 0.00 expected goals; best chance Mason Geertsen at 0.00 xG.
- Even strength
- Power play
- Penalty kill
- Goal
- Shot on goal
- Missed
- Blocked
Luck
2025-26 · 5 GP · 0 points vs 0.1 expected
- 0.0%
- 87.5
- –
- G vs xG
- 0 / 0.0
- • Only 5 games: treat the meter as a hint.
- Actual goals
- Expected
- ±1σ
- Above expected
- Below expected
Player analytics
Compare with another player →2025-26 regular season. Rank is among all qualified players; the bar is his percentile among forwards. Each stat links to its explainer.
Fantasy box score
- Games played5
- Goals0
- Assists0
- Points0
- Shots on goal1
- Hits8
- Blocked shots0
- Plus/minus−1
- Penalty minutes12
Possession & shot quality (5-on-5 on-ice)
- Corsi (CF%)45.2%
- Fenwick (FF%)50.0%
- Sequence xG (sxGF%)46.2%
Transition, turnovers & faceoffs
- Turnover Ledger /600.000
Usage
- Offensive-zone start %28.6%
Special teams & discipline
- Net penalties drawn /60−17.48
Luck & trend
- On-ice PDO875
- Luck Meter−18514th of 828
NHL EDGE tracking
- Hardest shot40.8
- Offensive-zone time37.3%
Unranked rows are below the sample minimum (20 GP, 200 five-on-five minutes, 100 draws or 10 goalie games).
Beyond the box score
2021-22 regular season · 19 of 25 games through the sequence engine (more fill in as games are reprocessed)
- +0.014
- Season net
- +0.04xG
5-on-5. Each takeaway is credited, and each giveaway charged, at the league xG value of the zone.
- Per 60
- 0.35
- Attempts
- 1
- 0.004
5-on-5 shots within 10 seconds of winning the puck outside the offensive zone.
Linemates
2025-26 · 5v5 time together and how each pairing performs with and without Geertsen
| Teammate | Pos | GP | Share | CF% together | GF% together | CF% Geertsen apart | CF% mate apart | |
|---|---|---|---|---|---|---|---|---|
| Beck Malenstyn | LW | 4 | 10:54 | 53% | 38.9% | 0% (0-1) | 50.0% 4:11 | 33.3% 13:21 |
| Tyson Kozak | C | 3 | 10:15 | 50% | 43.8% | — (0-0) | 100.0% 2:02 | 52.2% 10:30 |
| Bowen Byram | D | 5 | 7:55 | 39% | 23.1% | — (0-0) | 61.1% 12:37 | 52.5% 82:41 |
| Josh Dunne | C | 2 | 7:53 | 38% | 54.5% | — (0-0) | 50.0% 1:23 | 54.5% 5:08 |
| Rasmus Dahlin | D | 3 | 5:30 | 27% | 71.4% | — (0-0) | 37.5% 8:30 | 50.0% 55:01 |
| Conor Timmins | D | 4 | 5:04 | 25% | 22.2% | — (0-0) | 56.3% 11:39 | 48.6% 54:05 |
| Owen Power | D | 3 | 5:02 | 25% | 75.0% | — (0-0) | 42.1% 8:58 | 44.0% 45:52 |
| Jacob Bryson | D | 2 | 4:19 | 21% | 37.5% | 0% (0-1) | 40.0% 4:51 | 43.3% 17:06 |
| Justin Danforth | RW | 1 | 3:31 | 17% | 60.0% | — (0-0) | 0.0% 0:55 | 60.0% 4:26 |
| Ryan Johnson | D | 1 | 3:10 | 15% | 28.6% | 0% (0-1) | 100.0% 1:16 | 28.6% 8:05 |
| Zach Metsa | D | 1 | 2:46 | 13% | 75.0% | — (0-0) | 33.3% 2:41 | 50.0% 6:16 |
| Mattias Samuelsson | D | 1 | 1:41 | 8% | 66.7% | — (0-0) | 33.3% 2:08 | 40.7% 16:52 |
| Josh Doan | RW | 1 | 1:10 | 6% | 100.0% | — (0-0) | 25.0% 3:34 | 65.0% 11:17 |
| Michael Kesselring | D | 1 | 1:06 | 5% | 0.0% | — (0-0) | 75.0% 2:43 | 32.1% 14:58 |
Game log
5 games in 2025-26, newest first
| Date | Opp | Result | G | A | P | +/- | PIM | HIT | BLK | EV | PP | PK | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 4 | vs UTA | OTL 1-2 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | — | 3:49 | 3:49 | — | — |
| Oct 20 | @ MTL | L 2-4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | 5:27 | 5:27 | — | — |
| Oct 18 | vs FLA | W 3-0 | 0 | 0 | 0 | 0 | 0 | 10 | 3 | 0 | — | 2:06 | 2:06 | — | — |
| Oct 11 | @ BOS | L 1-3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | — | 4:48 | 4:44 | 0:04 | — |
| Oct 9 | vs NYR | L 0-4 | 0 | 0 | 0 | -1 | 0 | 2 | 2 | 0 | — | 4:26 | 4:26 | — | — |
Season splits by strength
2025-26 regular season · on-ice numbers from shift and play-by-play data
| Strength | GP | TOI/GP | SA | GF | GA | GF% | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All situations | 5 | 20:36 | 4:07 | 14 | 17 | 45.2% | 50.0% | 7 | 8 | 0 | 1 | 0% | 0.4 | 0.5 | 38% |
| Even strength | 5 | 20:32 | 4:06 | 14 | 17 | 45.2% | 50.0% | 7 | 8 | 0 | 1 | 0% | 0.4 | 0.5 | 29% |
| 5v5 | 5 | 20:32 | 4:06 | 14 | 17 | 45.2% | 50.0% | 7 | 8 | 0 | 1 | 0% | 0.4 | 0.5 | 29% |
| Power play | 1 | 0:04 | 0:04 | 0 | 0 | — | — | 0 | 0 | 0 | 0 | — | 0.0 | 0.0 | 100% |
Career by season
Seasons in Edgehalla's data (2025-26 is being backfilled; earlier seasons follow)
| Season | Team | GP | G | A | P | +/- | PIM | HIT | BLK | TOI/GP | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-26 | BUF | 5 | 0 | 0 | 0 | -1 | 12 | 1 | 0.0% | 8 | 0 | 4:07 |
| 2021-22 | NJD | 25 | 0 | 0 | 0 | -6 | 77 | 12 | 0.0% | 58 | 7 | 6:57 |
Mason Geertsen news
- Sabres' Mason Geertsen: Struggling to get into lineupCBS Sports
- Sabres place Mason Geertsen on waivers to open roster spot in advance of game Friday vs. Chicago BlackhawksBuffalo News
- Sabres Place Mason Geertsen On Waivers - NHL RumorsProHockeyRumors.com
- Sabres' Mason Geertsen: Placed on waiversCBS Sports
- Sabres make roster move by waiving Mason GeertsenBuffalo Hockey Beat
- Lost in the Avalanche: Mason GeertsenMile High Hockey
- What I'm seeing from Sabres: Josh Norris skating, Mason Geertsen's role, moreThe New York Times
- 'There's a purpose to this' | Mason Geertsen using cancer journey to connect with others in the fightNHL.com
Headlines via LineupExperts. Links open the original publisher.
On-ice and deployment numbers are derived by Edgehalla from NHL play-by-play and shift data. Tracking percentiles are from NHL EDGE. Data updates after every game.