bayesRatings

Mammoth at Islanders

NHL · Thursday, Jan 1 · 2:00 PM CT · UBS Arena · Final UTAH 7 – NYI 2

Final Box Score

from the game summary
Team123T
UTAH0347
NYI0112
Team box
UTAH·NYI
21
shots
22
2 of 5
power play
1 of 5
49.0
faceoff %
51.0
16
hits
13
14
blocked shots
13
10
penalty minutes
10
Top performers
Goalies
GoalieTeamSASVSV%
Karel VejmelkaUTAH2220.909
David RittichNYI149.643
Marcus HogbergNYI75.714

For context, not in our forecast.

Game Flow

score margin
NYI +5
UTAH +5
P1P2P3
largest lead: NYI 0 · UTAH 5lead changes: 0

For context, not in our forecast.

Final · our forecast was UTAH 45%, NYI 55% · Updated Jan 1

Expected margin
Even
Expected score
UTAH 2.8 – 2.7 NYI
Expected total
5.5
MammothThe matchupIslanders
+120Our fair odds−120
2.8Expected goals2.7
−0.05Power rating−0.03
3.0Goals / game2.9
2.9Allowed / game2.8
28.6Shots / game28.2
48.2Faceoff %51.3
18.5Hits / game18.7
18−22Season record22−18
4−6Last 106−4

Prediction markets

Kalshi · Polymarket US · ProphetX · Novig
UTAH chance · NYI chance
Our model fair45.5%54.5%
Kalshino two-sided price
Polymarket USno two-sided price
ProphetXno two-sided price
Novigno two-sided price
Full price table
TeamOur modelfairKalshi Polymarket US ProphetX Novig 
Moneyline
UTAHUtah Mammoth+12045%————
NYINew York Islanders−12055%————
Spreadabout even
UTAHUtah Mammoth−0.1our margin————
NYINew York Islanders+0.1our margin————
Totalwe expect 5.5
Over5.5our total————
Under5.5our total————

These are each venue’s last prices before the start (Kalshi’s moneyline: its pre-game close). Odds are the price to buy that side now, taker fee included; the small percent is the implied chance of that same price. Highlighted is the best price in the row among venues on the same line. — means not listed (hover or tap for why). A market price is not the true chance of winning.

Margin range

Even game expected
Utah Mammoth by 6 goals: <1%Utah Mammoth by 5 goals: 2%Utah Mammoth by 4 goals: 6%Utah Mammoth by 3 goals: 12%Utah Mammoth by 2 goals: 11%Utah Mammoth by 1 goal: 17%New York Islanders by 1 goal: 28%New York Islanders by 2 goals: 9%New York Islanders by 3 goals: 9%New York Islanders by 4 goals: 4%New York Islanders by 5 goals: 1%New York Islanders by 6 goals: <1%
← UTAH wins byNYI wins by →
Utah Mammoth wins by 2 or more31%
Utah Mammoth wins by 3 or more20%
New York Islanders wins by 2 or more24%
Decided by one goal45%

Centered on the expected margin above; shape from each team's expected goals, with ties after regulation settled as one-goal games, matched to 7,066 past NHL games.

Total range

5.5 expected
1 goals: 3%2 goals: 3%3 goals: 16%4 goals: 10%5 goals: 23%6 goals: 11%7 goals: 17%8 goals: 6%9 goals: 7%10 goals: 2%11 goals: 2%12 goals: <1%
Total goals, both teams
Total over 4.568%
Total over 5.544%
Total over 6.533%
Total from 5 to 634%

Centered on the expected total above; shape from each team's expected goals, with ties after regulation settled as one-goal games, matched to 7,066 past NHL games.

Starting Goalies

from the box score
UTAHKarel Vejmelka G · last 5 starts: .899 save %, 2.62 GAAstarted
NYIDavid Rittich G · last 5 starts: .944 save %, 1.56 GAAstarted

Starting goalies are part of our forecast.

Rest and Schedule

before this game
UTAH·NYI
Dec 29, 2025 vs NSH
last game
Dec 30, 2025 at CHI
2 days
days of rest
1 day
no
back-to-back
no
1
games in last 7 days
3
road after a home game
home / road
home after a road game

For context, not in our forecast.

Team Comparison

2025–26 season · box-score averages from 40+ games
UTAH·NYI
−0.05
rating (0 = average)
−0.03
3.0
goals / game
2.9
2.9
goals allowed / game
2.8
18−22
season record
22−18
9−8
home record
12−9
9−14
away record
10−9
L2
streak
W1
4−6
last 10
6−4
28.6
shots / game
28.2
48.2
faceoff %
51.3
18.5
hits / game
18.7
14.2
blocked shots / game
15.3
3.9
takeaways / game
4.5
16.3
giveaways / game
15.2

Rating Trend

UTAH · NYI · 76 days
Utah MammothNew York Islanders
Rating (0 = average team)

Head to Head

last 3 meetings · NYI 2−1
Nov 14, 2025at UTAHNYI 3 − 2 OT
Jan 11, 2025at UTAHNYI 2 − 1
Oct 10, 2024at NYIUTAH 5 − 4 OT

UTAH · Last 10

4−6 · streak L2
Dec 29, 2025vs NSH3 − 4L
Dec 23, 2025at COL0 − 1L
Dec 21, 2025vs WPG4 − 3W
Dec 19, 2025vs NJ1 − 2L
Dec 17, 2025at DET4 − 1W
Dec 16, 2025at BOS1 − 4L
Dec 14, 2025at PIT5 − 4W
Dec 12, 2025vs SEA5 − 3W
Dec 10, 2025vs FLA3 − 4L
Dec 8, 2025vs LA2 − 4L

NYI · Last 10

6−4 · streak W1
Dec 30, 2025at CHI3 − 2W
Dec 28, 2025at CBJ2 − 4L
Dec 27, 2025vs NYR2 − 0W
Dec 23, 2025vs NJ2 − 1W
Dec 20, 2025at BUF2 − 3L
Dec 19, 2025vs VAN1 − 4L
Dec 16, 2025at DET2 − 3L
Dec 13, 2025vs TB3 − 2W
Dec 11, 2025vs ANA5 − 2W
Dec 9, 2025vs VGK5 − 4W