GRIT & GF
Liam O'Brien

Utah Mammoth, Centre

Liam O'Brien

  • Heavy
  • Shot-eater
  • Edgy
Points, 2025–26
4
3 G, 1 A in 38 GP
Individual xG
4.7
3 goals from it
Ice time per game
9:09
35 shots on goal
xGF% at 5v5
45.6
share of chances while he's on

Liam O'Brien has 3 goals and 1 assist (4 points) in 38 games for the Utah Mammoth in 2025–26, with 35 shots on goal and 9:09 of ice time a game. His Grit & GF rating for 2025–26 is 78.3 out of 100.

GRIT & GF

2025-26

78.3050100
Rated above 71% of forwards
Goals above average
−2.3
Wins
−0.39
Physicality81thGF80thIntimidation9thChemistry24thClutch39th

Where the rating comes from

Weight × score in standard deviations. They sum to +0.46, which the normal curve turns into the rating.

Your weights

Under these weights he ranks above 70.4% of 531 rated players

The default weights are our call. Set your own; they get rescaled to add up to 100%.

Physicality

+0.80 SD · 81th percentile · weight 38% · −0.3 goals

What he does with his body: hits, blocks and takeaways (scaled toward per-game totals by his ice time), penalties drawn, and penalties taken against him.

  • Hitsper 60All situations, pulled toward average when the sample is small.16.297th pct
  • Blocked shotsper 60All situations.3.791th pct
  • Takeawaysper 60As recorded by the arena scorer, which varies by building.0.381th pct
  • Penalties drawnper 60How often he gets under someone's skin enough to put his team on the power play.1.0577th pct
  • Penalties takenper 60Counts against him, at half the weight of penalties drawn.1.389th pct
  • Ice time× position averagePer-game ice time against his position's average. Physical rates are scaled by this to the power 0.75.0.616th pct

Percentiles are against 531 rated forwards in 2025-26, on 366 minutes of his 5-on-5 time. Hits, blocks and takeaways count toward the rating and are worth zero goals until a study shows otherwise. Model grit-0.5.

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Game notes

Written the morning after from the night's stats, for games where he did something worth a sentence.

  1. at VAN

    Saturday, April 4

    Drought over

    Liam O'Brien scored for the first time in 23 games. He has 3 goals this season. He played 10:21 and had one shot on goal. The Mammoth beat the Canucks 7-4.

  2. at FLA

    Tuesday, January 27

    Physical

    Liam O'Brien finished 8 checks, the most in the league that night. He has 3 points in 29 games this season. It finished 4-3 for the Mammoth.

  3. vs TOR

    Tuesday, January 13

    Physical

    Liam O'Brien finished 8 checks. He has 3 points in 24 games this season. He played 9:07 and had one shot on goal. The Mammoth beat the Maple Leafs 6-1.

  4. at CGY

    Saturday, December 6

    Physical

    Liam O'Brien threw 7 hits. He has 2 points in 11 games this season. He played 6:47 and had two shots on goal. The Mammoth lost 2-0 to the Flames.

  5. vs SJS

    Friday, October 17

    Drought over

    Liam O'Brien scored for the first time in 28 games. That was his first goal of the season. He played 10:09 and had two shots on goal. It finished 6-3 for the Mammoth.

Player card

Percentile among 476 forwards with enough games this season. 50 is the median.

Scoring

  • Ice time per game9:09
    5
  • Points per 600.69
    4
  • Goals per 600.52
    25
  • Individual xG per 600.82
    47
  • Shots per 606.0
    48

5-on-5 play

  • xG for per 60, on ice1.98
    12
  • xG against per 60, on ice2.37
    69
  • xGF%45.6%
    21

Physical

  • Hits per 6019.8
    98
  • Blocks per 604.0
    90
  • Penalty minutes per 607.4
    2

Who he plays with

His most-used linemates at 5-on-5 this season, with what happened while they were out together.

LinematesGamesTOIShot attemptsxGGoalsxG share
Kevin Stenlund, Brandon Tanev28193:46179–1937.3–8.02–648%
Kevin Stenlund, Kailer Yamamoto1150:5955–301.9–0.93–167%
Alexander Kerfoot, Kevin Stenlund636:3931–400.9–1.21–142%
Kevin Stenlund, JJ Peterka3514:4710–160.3–0.80–231%
Kevin Stenlund, Michael Carcone208:315–180.1–0.90–210%
Kevin Stenlund, Dylan Guenther247:048–40.2–0.10–082%
Lawson Crouse, Kevin Stenlund204:331–70.0–0.50–07%
Kevin Stenlund, Clayton Keller173:421–10.1–0.00–099%

Where he shoots from

His unblocked shots this season, attacking right. 3 goals from 66 attempts.

GoalShot or miss

Last 20 games

Columns are his individual expected goals, the quality of his own chances. Dots are goals he scored.

ixGGoal
0.000.200.40
01-0104-27

By season

SeasonGPGAPSOGixGTOI/GPHitsBlkxGF% 5v5
2025–2638314354.79:091152345.6
2024–2528022344.19:181001552.5
2023–24755914729.39:442294147.6

Last 20 games

DateTOIGASOGixGHitsBlkPIM
2026-04-278:110000.02200
2026-04-247:410100.02412
2026-04-216:540000.00520
2026-04-1612:060010.24120
2026-04-148:470010.19310
2026-04-1210:290020.36400
2026-04-118:460020.15410
2026-04-098:390020.14400
2026-04-0410:211010.22610
2026-02-048:100010.05410
2026-02-028:290000.092112
2026-01-2910:500000.01400
2026-01-277:580000.04800
2026-01-2412:110020.10100
2026-01-216:060000.07402
2026-01-178:500000.00300
2026-01-158:300000.00420
2026-01-139:070010.28810
2026-01-0310:010000.06600
2026-01-0111:040010.13310