Defense · BUF · 2026-27IR

Olen Zellweger

Age: 23
Height: 5'10"
Weight: 194 lb
Shoots: L
Born: Calgary

Games: 5
Goals: 0
Assists: 1
Points: 1
Ice time: 17:20/gm

Not enough ice time

Too few minutes this season to rate against the league. The WAR figure below is still measured, just not ranked.

-0.15wins above replacement

How he earns it

Each rating compares him only with players who take that role, so the four are not measured against the same field.

Even-strength offenseNot enough ice time to rate

Even-strength defenseNot enough ice time to rate

Power playDoesn't play on the power play

Penalty killDoesn't kill penalties

Season by season

Every season is drawn on the same scale, so bar length is comparable top to bottom. Bars left of the center line cost the team goals; bars right of it earned them.

Season	GP	Rating	WAR	Where it came from
2023-24ANA	26	38	+0.19	Where it came from
2024-25ANA	62	58	+0.47	Where it came from
2025-26ANA	76	59	+0.54	Where it came from
2026-27BUF	5	—	-0.15	Where it came from
Career4 seasons	169	—	+1.05

Even-strength offenseEven-strength defensePower-play offensePower-play defenseShorthanded offenseShorthanded defense

Game log

Regular season · 5 games

Game	Result	TOI	A	P	Shots	Blocks	Grade
vs FLAOct 12	— -	20:03	1	1	6	0	B
vs UTAOct 10	— -	18:30	0	0	0	0	C-
vs DALOct 8	— -	17:43	0	0	0	0	C
vs MINOct 6	— - OT	14:52	0	0	0	1	C
vs CHIOct 3	— -	15:31	0	0	1	0	C+

A player's rating is his percentile among NHL defencemen — a 70 means he is better than 70% of them. It is measured from wins above replacement, the number of wins he adds compared with a player freely available to any team. See the full roster table or read how this is calculated.