HockeyAlpha
Regular season

Erik Cernak

Tampa Bay Lightning · D · #81
Third-pair DDepth Defenseman?99 blocks in 61 games of hard minutes
HT
6'4"
WT
230 lb
Age
29
Shoots
R
From
Kosice, SVK
Draft
2015 LAK · R2 #43
67Alpha?

Alpha sub-scores

what drives the rating · percentile vs position group
Scoring?
4141pctl
Playmaking?
4747pctl
Transition?
2727pctl
Defense?
7070pctl

League profile

vs. defensemen with 20+ GP
Points / GP?
0.1823pctl
Goals / GP?
0.0546pctl
Assists / GP?
0.1320pctl
Shots / GP?
0.930pctl
Plus/Minus?
+359pctl
PP Points?
027pctl

HockeyAlpha advanced

event-derived proxies · 1,312 games analyzed
xG Share?
1.4%10pctl
ZEIS?
0.7513pctl
PSPL?
0.1563pctl
Def Suppression?
0.9390pctl

Defenseman toolkit

vs. defensemen with 20+ GP
Blocks / GP?
1.6276pctl
Blocks / 60?
5.5285pctl
Hits / 60?
6.391pctl
Take : Give?
0.2757pctl
PP TOI / GP?
0:0332pctl
PK TOI / GP?
2:3886pctl

On-ice impact

shift charts × our xG model · 37 GP tracked · 11h TOI

Usage profile

assignment difficulty · higher fill = tougher job
Competition faced?
17.6 min65pctl
Support received?
16.8 min67pctl

Micro-metrics

Structural Metric Model · sequences, geometry & leverage from every shot

2025-26 regular season · Percentile beams: fill = league percentile, tick = league median · hockeyalpha.com

The Blueprint

Structural Event Engine · percentile vs defensemen · center = median · 911 EV min

Derived from event sequences in public play-by-play data - the ? on each metric explains exactly how it's computed. · hockeyalpha.com

Contract & market

Contract value?

beta · cap data: CapWages

$5.20M

cap hit

$3.91M

Alpha-market value

overpaidmarketsurplus

D

Paying a premium ($1.3M)

Top comparables?

nearest profiles at the same role · match = statistical fit
PlayerAlphaCap hitValueMatch
Erik Cernak67$5.20MD$1.3Mthis player
Jacob Middleton67$4.35MC$0.4M93%
Trevor van Riemsdyk68$3.00MB+$1.2M90%
Tyler Kleven65$1.60MB+$1.8M85%
Olli Maatta64$3.50MC$0.4M84%

Chemistry

Top connection: Ryan McDonagh · 3 goals together

Recent form · last 10 games

1 pts · 1 G · 0 A · 13 shots in last 10Steady(+0.2 P/GP vs prior 5)

vs NSH

0P

0G 0A

vs MTL

0P

0G 0A

vs PIT

0P

0G 0A

vs BOS

0P

0G 0A

@ BUF

0P

0G 0A

@ OTT

0P

0G 0A

@ MTL

0P

0G 0A

@ BOS

0P

0G 0A

vs DET

1P

1G 0A

vs NYR

0P

0G 0A

Tile tint = points that night · underline = shot volume (full bar = 8+ shots) · oldest on the left

The Territory

attacking → · every recorded touch, normalized to one end

attacking →← defending
Goal On goal Missed/blocked▲ takeaway▽ giveaway■ hit+ block◯ faceoff dot (size = wins)237 events shown

The office: the crease doorstep - 2 of 3 goals live there

Playmaking gravity: 10 touches that produced a teammate shot within 3s

Defensive floor: 99 blocks · 8 steals inside the d-zone

NHL career · regular season

SeasonTeamGPGAP+/−
2018-19Tampa Bay Lightning585111625
2019-20Tampa Bay Lightning67571211
2020-21Tampa Bay Lightning46513188
2021-22Tampa Bay Lightning55112137
2022-23Tampa Bay Lightning70214168
2023-24Tampa Bay Lightning69211135
2024-25Tampa Bay Lightning763182129
2025-26Tampa Bay Lightning6138113
Career1 team502269412096