Mark Kastelic

6-4, 140 penalty minutes, and 12 goals — the job as it exists now.

Season	Team	GP	G	A	PTS	+/-	PIM	PP	SH	GW	S	S%	TOI

2021-22	OTT	16	2	2	4	-1	14	0	0	1	11	18.2	9:11
2022-23	OTT	65	7	4	11	-6	102	0	0	2	73	9.6	8:54
2023-24	OTT	63	5	5	10	-5	63	0	0	0	60	8.3	7:43
2024-25	BOS	61	5	9	14	-3	106	0	0	0	67	7.5	10:44
2025-26	BOS	82	12	10	22	+6	140	0	1	4	100	12.0	12:37
2026-27 so far	—	—	—	—	—	—	—	—	—	—	—	—	—
Career	—	287	31	30	61	-9	425	0	1	7	311	10.0	10:06

This Season So Far

The 2026-27 season has not started. The empty row above is his, and both it and this paragraph fill in on their own from the morning after he first plays: what he has done, what it is worth against his own last season, and the run he is on when the two disagree.

Last Season

12 goals and 10 assists in all 82 games with 140 penalty minutes, plus-6, at 12:37 a night.

The Finesse Game

Better than the role suggests. 43 per cent of his unblocked attempts came from inside 20 feet with a median of 23 — he goes to the net and shoots from there, and 100 shots produced 12 goals.

10 assists in 82 games is the honest ceiling on the playmaking. Nobody is asking.

The Physical Game

The reason he is here and he is very good at it. 6-4, 234 pounds, 140 penalty minutes, and he will fight anyone who needs fighting. He also wins the wall battles that a fourth line has to win to change the ice.

The Intangibles

Read this page beside the enforcer entries in a 1991 edition and the difference is the whole argument. That man took 250 minutes and scored twice. Kastelic took 140 and scored 12, played all 82 games, and killed penalties. Under a cap, a club cannot carry a player who only fights, so the ones who survived learned to play.

The on-ice rate was 45.4 per cent of the expected goals, 18th percentile — below the line, like almost every Bruin. The goals went 29-23 in his favour against expected goals of 30.5 to 36.8, which is another 12-goal gift from the man in net.

3 goals in his last 10 games. He is 27 and this is exactly what he is, which for the fourth line is fine.

What kind of player

The searchable half of the report. The first group is computed from the season's own data; the rest are read out of the prose above, and each one carries the sentence that produced it. A subject the report never raised is simply absent.

measuredcomputed here from the season's own data

Each computed tag also says how well its measure holds up from one season to the next, because a tag describes a season that has finished and a reader will assume it predicts the one coming. Some do and some do not, and the gap is wide: five-on-five workload repeats well, scoring late does not repeat at all.

durable· was available
82 of 82 games
Season to season, this measure repeats weakly (0.32) · 53% keep it

The numbers underneath

On the ice

Five-on-five, 2025-26 · 863 minutes

Expected goals: 45.4%; 18th pct
Shot attempts: 47.7%; 33rd pct

Goals while he was on the ice: 29 for, 23 against. Expected: 30.5 and 36.8.

The eye and the numbers

Sighted

Report

23rd

Numbers

18th

The two rank him within 5 points of one another. It was written with these numbers on screen, so the agreement is not corroboration — the arithmetic is on both sides of it.

Both bars are percentiles among the 656 skaters in this edition with a report and enough ice time. The report bar ranks the mean of the grades above — 67 on their own scale — against every other report's mean. The numbers bar ranks his share of expected goals. A gap is a disagreement about where he belongs, not two scales talking past each other.

Tracked

NHL Edge, 2025-26 · 82 games

Top speed: 22.7 mph; 75th pct
Bursts over 20 mph: 2.09 a game
Distance: 1.98 miles a game
Hardest shot: 92.3 mph; 91st pct

A top speed is a season's best, and a man who takes more shifts gets more tries at one; the percentile is the feed's own, against every skater, and says less between a top-pair defenceman and a fourth-line wing than it does between two men in the same job. The counts are shown per game for the same reason.

Recent form

Last 20 appearances, 2025-26, oldest first

points in his last 10 games — 3 goals, 1 assists, 19 shots

Each bar is one game by points. Filled bars are games he scored in.

Usual linemates

2025-26 · 863 minutes at five-on-five

Share of his five-on-five ice time spent alongside each player, measured from shift charts. Special teams are excluded: a power-play unit is not a line.

Why the numbers land there

Five-on-five, 2025-26

The club: BOS took 48.0% of the expected goals as a club. His own share is 45.4% — 2.6 below the club he did it on.
The role: Third line, 863 minutes at five-on-five — 44th percentile in ice time.

With and without

Teammate	Together	Him apart	Mate apart
Tanner Jeannot	46.6%	42.6%	49.0%
Sean Kuraly	45.2%	45.6%	53.6%
Nikita Zadorov	43.2%	47.0%	47.7%

46.6% together, 42.6% for him apart and 49.0% for Jeannot apart. He was worse away from Jeannot, who was no better away from him — he needed that pairing more than Jeannot did.

Expected-goal share while both were on the ice, and for each man in the minutes he played without the other. Apart is the pair subtracted from his own totals. It does not settle who was carrying whom — apart from each other, both were still playing with somebody — but it does say whether the share travelled when the pairing broke up.

Where he shoots from

goal on goal missed

168 unblocked shots in 2025-26, 12 of them goals. His median goal came from 16 feet. 43% of his shots came from inside twenty feet, 20% from beyond forty.