PuckSleuth
38Chicago Blackhawks · Defense · Shoots L
Ethan Del Mastro
Age 23 · 6'4" · 210 lb · Born in Burlington, CAN
Cap hit
$950K
0.9% of $104M cap
Term
2 yrs
Through 2027-28, then RFA
Clause
None
Surplus value
+$2.814M
vs. $3.764M market estimate
Confirmed by the public signing announcement · source
2025-26 regular season
GP
19
Goals
0
0.0% shooting
Assists
1
1 primary
Points
1
0.05 per game
TOI/GP
14:08
PP 0:00 · PK 0:47
xGF%
39.7
5v5, -3.6 vs. last yr
Game Score
-0.09
per game, goals above average
Faceoff %
—
Plus/minus
-11
Blocks 22 · Hits 19
Game log
Last 5 games · NHL API
| Game | G | A | SOG | HIT | BLK | TOI | PP | PK | FO | OZS% | GV | TK | +/- | GS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 15 vs SJS · W 5-2 | 0 | 1 | 1 | 1 | 1 | 14:01 | 0:00 | 1:01 | — | 0 | 0 | 1 | 0 | +0.47 |
| Apr 13 vs BUF · L 5-1 | 0 | 0 | 3 | 0 | 1 | 16:13 | 0:00 | 1:48 | — | 33 | 0 | 0 | 0 | +0.09 |
| Apr 9 vs CAR · L 7-2 | 0 | 0 | 1 | 0 | 0 | 16:35 | 0:00 | 0:00 | — | 0 | 2 | 0 | -1 | -0.15 |
| Apr 6 @ SJS · L 3-2 | 0 | 0 | 1 | 1 | 2 | 14:23 | 0:00 | 1:38 | — | 0 | 0 | 0 | -2 | -0.03 |
| Apr 4 @ SEA · W 4-2 | 0 | 0 | 0 | 0 | 3 | 15:42 | 0:00 | 1:36 | — | 33 | 2 | 1 | 0 | +0.01 |
GS = our Game Score, goals above average. FO = faceoffs won-lost. OZS% = share of his 5v5 offensive and defensive zone faceoff starts that were in the offensive zone. GV/TK = giveaways/takeaways.
Advanced metrics
5v5 unless noted · 2025-26 · 249 min · percentile vs. NHL defensemen
2nd percentile
39th percentile
5th percentile
16th percentile
85th percentile
17th percentile
0th percentile
6th percentile
60th percentile
17th percentile
32nd percentile
44th percentile
1st percentile
1st percentile
xGF% is his team's share of 5v5 expected goals while he was on the ice, from our own expected goals model; HDCF% counts only high-danger chances (xG of 0.15 or more). IPP is the share of his team's 5v5 goals while he was on the ice that he scored or assisted on. Relative stats compare him with his team when he was off the ice. Goals above expected and ixG/60 use his own shots at all strengths. PDO and OZS% describe luck and deployment, so their bars are grey.
Play styleShutdown defenseman
Trait percentiles vs. NHL defensemen · 2025-26
Del Mastro is a defensive anchor who excels at shutting down plays and punishing opponents physically, but his limited speed and playmaking ability restrict his impact from the blue line. He plays an aggressive, high-pressure game built on strong positioning and physicality rather than puck movement or offensive creativity.
- Shooting volume
- 53
- Playmaking
- 33
- Zone entries(est.)
- 47
- Forechecking
- 85
- Physicality
- 73
- Defensive impact
- 96
- Puck management
- 38
- Speed
- 35
Where he shoots from
Slot 8% · Mid-range 40% · Perimeter 52%(25 unblocked shots)
Strengths
- Defensive impact at 96th percentile makes him a reliable stop player in own zone
- Forechecking intensity at 85th percentile drives puck recovery and turnovers
- Physicality at 73rd percentile adds credible edge to his defensive work
Watch-outs
- Speed at 35th percentile limits mobility and transition play
- Playmaking at 33rd percentile leaves breakout passes to teammates
- Puck management at 38th percentile means fewer chances to orchestrate from back
Similar style: Simon Edvinsson, Tyler Tucker (STL)
Built from play-by-play, shift data, and NHL EDGE tracking. Zone entries is an estimate (rush chances while he is on the ice) until tracking data is added.
Where his Game Score comes from
2025-26 · 19 GP · goals above average
Season total -1.7 goals, or -0.09 per game.
- Even strength offense
- -0.6
- Even strength defense
- -0.1
- Penalty kill
- +0.1
- Finishing
- -0.5
- Playmaking
- -0.4
- Penalties
- -0.2
Game Score adds up a player's impact in goals compared with an average player given the same ice time: his share of expected goals for and against at even strength, on the power play, and on the penalty kill, plus finishing (goals minus expected goals), primary assists, penalties drawn and taken, and faceoffs. Goalies are measured by goals saved above expected.
Career stats
From the NHL's player records
| Season | Team | GP | G | A | P | +/- | PIM | PPG | PPP | SHG | GWG | SOG | S% | TOI | FO% | GS/GP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-24 | Chicago Blackhawks | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 18:35 | — | -0.03 |
| 2024-25 | Chicago Blackhawks | 24 | 2 | 4 | 6 | -3 | 6 | 0 | 0 | 0 | 0 | 19 | 10.5 | 18:19 | — | -0.00 |
| 2025-26 | Chicago Blackhawks | 19 | 0 | 1 | 1 | -11 | 18 | 0 | 0 | 0 | 0 | 18 | 0.0 | 14:08 | — | -0.09 |
| 2026-27 | Chicago Blackhawks | 1 | 0 | 0 | 0 | -2 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 15:01 | — | — |
| Career | 4 seasons | 46 | 2 | 5 | 7 | -16 | 24 | 0 | 0 | 0 | 0 | 37 | 5.4 | 16:32 | — |
Seasons traded mid-year show one row per team. GS/GP is our Game Score per game.
Usage
Last game: @ UTA, Oct 1
Not on a regular line last game.
From the NHL's shift chart.
Latest news
Headlines from news outlets and team blogs
- What the Blackhawks can expect with Korchinski and Del Mastro in the lineup
blackhawkup.com · Oct 3
- How Ethan Del Mastro is working to show he can be an NHL regular with the Blackhawks
blackhawkup.com · Sep 20
- Blackhawks sign Ethan Del Mastro to Two-Year Contract Extension
blackhawkup.com · Sep 16
Sentiment & chatter
Fans
—
Beat writers
—
Media
—
Fan, beat writer, and media scores, the 14-day trade chatter chart, and the latest mentions appear once sentiment scoring is switched on. Mentions are already being collected.
Recent Game Scores
Last 10 games · goals above average
Average -0.06 per game over these 10.
Skating · NHL EDGE
2025-26, as of Oct 2
- Top speed
- 21.8 mph
- 54th pct
- 20+ mph bursts
- 4
- Hardest shot
- 93.5 mph
- 70th pct
- Distance
- 38.0 mi
- OZ time
- 40.2%
- 27th pct
- DZ time
- 42.1%
Age curve
NHL defensemen · production index
At 23, defensemen typically produce 100% of their peak (age 24). His contract runs through age 24, when the typical level is 100%.
From 24 seasons of NHL results, adjusted for league scoring and save percentage in each era. Shaded bars are the seasons left on his contract.
Contract by season
2 seasons left
| Season | Team | Cap hit | % of cap |
|---|---|---|---|
| 2026-27 | CHI | $950K | 0.9% |
| 2027-28 | CHI | $950K | 0.8% |
RFA after 2027-28. $1.9M in cap hits left. % of cap uses each season's ceiling where the league has set one ($104M this season, $113.5M in 2027-28).