Liam O'Brien
| Position | Left Wing / Right Wing | Current Team | Utah Mammoth |
| Shoots | Left | Current Contract | 3 years |
| Height | 6'1" | Expires | 2026-27 |
| Weight (lbs) | 215 | Expiry Age (Jun 30) | 32 |
| Age | 31 (July 29, 1994) | Expiry Status | UFA |
| Drafted | Undrafted |
| Date | Team | Transaction | |
|---|---|---|---|
| Oct 17, 2025 | Utah Mammoth | Activated from IR | |
| Oct 6, 2025 | Utah Mammoth | Placed on IR | |
| Jun 26, 2024 | Utah Hockey Club | Signed 3 years @ $1.000M AAV starting in 2024-25 | |
| Mar 6, 2022 | Arizona Coyotes | Signed 2 years @ $775K AAV starting in 2022-23 | |
| Jul 28, 2021 | Arizona Coyotes | Signed 1 year @ $750K AAV starting in 2021-22 | |
| Mar 30, 2021 | Colorado Avalanche | Signed 1 year @ $700K AAV starting in 2020-21 | |
| Jun 10, 2019 | Washington Capitals | Signed 1 year @ $700K AAV starting in 2019-20 | |
| Jul 13, 2018 | Washington Capitals | Signed 1 year @ $650K AAV starting in 2018-19 | |
| Jul 14, 2017 | Washington Capitals | Signed 1 year @ $650K AAV starting in 2017-18 | |
| Oct 5, 2014 | Washington Capitals | Signed to an entry level contract. |
2025-26 Player Card
URL: https://www.thestanleycap.com/cdn/player_cards/20252026/liam-o-brien-8477070.png
2024-25 Player Card
URL: https://www.thestanleycap.com/cdn/player_cards/20242025/liam-o-brien-8477070.png
2023-24 Player Card
URL: https://www.thestanleycap.com/cdn/player_cards/20232024/liam-o-brien-8477070.png
About Player Cards
Player cards present an infographic of a players performance. In this case it shows the player performance over a 3 season span. Each square is separated into three separate sub-boxes with the two smaller boxes on top representing the past two seasons and the larger box on the bottom representing the current or most recent season. This allows the reader to guage how consistent a player has been, and if early in the season it can help identify whether a players performance may be impacted by small sample size and subject to regression or is consistent with recent past performance.
Notes and Definitions
- The numbers represent percentiles so the higher the better.
- Percentiles are determined by comparing Forwards to Forwards and Defensemen to Defensemen.
- Bursts/mi are calculated from NHL Edge Data are are speed bursts above 20mpg per mile skated. The NHL doesn't adjust for ice time so the players that skate more will naturally have more bursts over 20, or at least more opportunity to have more. The NHL also does not provide ice time in the context of NHL Edge Statistics, however, it does provide distance skated. By adjusting for distance skated it will have a similar effect to adjusting for ice time but also adjust for situationional effect. For example, Players don't typically skate as much on the PK, mostly within the defensive zone, so don't get significant opportunity in that ice time to get speed bursts above 20mph. Adjusting with miles skates would account for this better than adjusting with ice time.
- Sh%AE is Shooting Percentage above Expected (Sh% - xSh%) and is an indicator of how good a shooter is at converting chances into goals.
- Relative statistics are On Ice - Off Ice statistics and can be an indicator of whether the player makes his teammates better or worse.
- All data is 5v5 except Shooting Hardest and Average, Skating Top Speed and Bursts/mi which are all situations, ES Average which is even strength (NHL doesn't give a specific definition).
Data Sources
- Salary data is from TheStanleyCap.com
- Shooting and Skating (except Sh%AE) are from NHL Edge
- Other statistics are from Puckalytics.com and derived from data from NHL.com
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Note: The image will update daily throughout the season so if you want to include snapshot then you must download the image.
If you have any questions, send an e-mail to the e-mail address at the top of this page.
5v5 Individual Stats
| Season | Team(s) | GP | TOI | G/60 | A/60 | Pts/60 | xG/60 | GAE/60 | Sh% | xSh% | Sh%AE | %SA Rush | %SA Reb. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016-17 | WSH | 1 | 6:08 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | - | - | - | - | - |
| 2017-18 | WSH | 3 | 20:32 | 0.00 | 0.00 | 0.00 | 0.04 | -0.04 | 0.00 | 1.48 | -1.48 | 0.00 | 0.00 |
| 2020-21 | COL | 12 | 77:39 | 0.00 | 2.32 | 2.32 | 0.41 | -0.41 | 0.00 | 8.82 | -8.82 | 0.00 | 0.00 |
| 2021-22 | ARI | 39 | 359:03 | 0.33 | 0.17 | 0.50 | 0.61 | -0.28 | 5.71 | 10.45 | -4.74 | 2.00 | 12.00 |
| 2022-23 | ARI | 56 | 578:38 | 0.31 | 0.73 | 1.04 | 0.35 | -0.04 | 8.33 | 9.32 | -0.98 | 0.00 | 3.85 |
| 2023-24 | ARI | 75 | 695:36 | 0.43 | 0.78 | 1.21 | 0.58 | -0.15 | 7.04 | 9.44 | -2.40 | 5.10 | 7.14 |
| 2024-25 | UTA | 28 | 257:29 | 0.00 | 0.47 | 0.47 | 0.91 | -0.91 | 0.00 | 11.45 | -11.45 | 3.77 | 5.66 |
| 2025-26 | UTA | 7 | 65:12 | 0.92 | 0.00 | 0.92 | 1.35 | -0.43 | 10.00 | 14.68 | -4.68 | 0.00 | 12.50 |
5v5 On Ice Stats
| Season | Team(s) | GP | TOI | SAF/60 | GF/60 | xGF/60 | SAA/60 | GA/60 | xGA/60 | GF% | xGF% | xGF Rel | xGA Rel | xGF% Rel |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016-17 | WSH | 1 | 6:08 | 68.48 | 0.00 | 4.08 | 48.91 | 0.00 | 0.80 | - | 83.64 | 1.96 | -1.26 | 32.91 |
| 2017-18 | WSH | 3 | 20:32 | 26.30 | 0.00 | 1.12 | 37.99 | 0.00 | 2.41 | - | 31.69 | -1.32 | 0.24 | -21.21 |
| 2020-21 | COL | 12 | 77:39 | 40.18 | 2.32 | 2.48 | 39.41 | 1.55 | 1.80 | 60.00 | 58.01 | -0.28 | -0.38 | 2.01 |
| 2021-22 | ARI | 39 | 359:03 | 30.08 | 1.00 | 1.69 | 46.79 | 1.00 | 2.76 | 50.00 | 38.03 | -0.52 | 0.04 | -6.79 |
| 2022-23 | ARI | 56 | 578:38 | 28.20 | 1.66 | 1.70 | 43.24 | 2.38 | 2.62 | 41.03 | 39.30 | -0.64 | -0.30 | -5.13 |
| 2023-24 | ARI | 75 | 695:36 | 33.90 | 2.33 | 2.06 | 42.78 | 2.07 | 2.30 | 52.94 | 47.22 | -0.48 | -0.36 | -1.66 |
| 2024-25 | UTA | 28 | 257:29 | 41.25 | 2.10 | 2.28 | 39.61 | 1.63 | 2.21 | 56.25 | 50.78 | -0.29 | 0.04 | -3.53 |
| 2025-26 | UTA | 7 | 65:12 | 35.89 | 0.92 | 2.63 | 47.85 | 4.60 | 3.14 | 16.67 | 45.59 | 0.09 | 1.27 | -12.05 |
NHL Edge Stats
| Skating | Shooting | Zone Time | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | GP | Top Speed | Bursts>20/mi | Avg. Speed | ES Avg. Speed | Top Speed | Avg. Speed | %Long Range | %Mid Range | %High Danger | ES DZ% | ES NZ% | ES OZ% |
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Legend
| Percentile 0-25 | Percentile 25-50 | Percentile 50-75 | Percentile 75-100 |
5v5 Lines
| Season | Teammate | Teammate | Team | TOI | GF/60 | GA/60 | GF% | xGF/60 | xGA/60 | xGF% | xGF Rel | xGA Rel | xGF% Rel |
|---|
Glossary
| Type | Statistic | Definition |
|---|---|---|
| Individual | G/60 | Goals Against per 60 minutes. |
| Individual | A/60 | Assists per 60 minutes. |
| Individual | Pts/60 | Points per 60 minutes. |
| Individual | xG/60 | Expected Goals per 60 minutes. |
| Individual | GAE/60 | Goals Above Expected (G/60 - xG/60). |
| Individual | Sh% | Shooting Percentage. |
| Individual | xSh% | Expected Shooting Percentage. |
| Individual | Sh%AE | Shooting percentage above expected (Sh% - xSh%). |
| Individual | %SA Rush | Percentage of shot attempts determined to be on the rush. |
| Individual | %SA Reb. | Percentage of shot attempts determined to be from rebounds. |
| On Ice | SAF/60 | Shot Attempts For per 60 minutes. |
| On Ice | GF/60 | Goals For per 60 minutes. |
| On Ice | xGF/60 | Expected Goals For per 60 minutes. |
| On Ice | SAA/60 | Shot Attempts Against per 60 minutes (lower is better). |
| On Ice | GA/60 | Goals Against per 60 minutes (lower is better). |
| On Ice | xGA/60 | Expected Goals Against per 60 minutes (lower is better). |
| On Ice | GF% | Goals For Percentage = Goals For / (Goals For + Goals Against) |
| On Ice | xGF% | Expected Goals For Percentage = Expected Goals For / (Expected Goals For + Expected Goals Against) |
| On Ice | xGF Rel | xGF/60 when On Ice - xGF/60 when not On Ice. |
| On Ice | xGA Rel | xGA/60 when On Ice - xGA/60 when not On Ice (lower is better). |
| On Ice | xGF% Rel | xGF% when On Ice - xGF% when not On Ice. |
News and Opinions
-
3 Takeaways From Mammoth’s 6-3 Win Over Sharks at The Hockey Writers (Sat Oct 18, 2025)
-
Utah Mammoth’s 2024-25 Report Cards: Liam O’Brien at The Hockey Writers (Fri Aug 22, 2025)
Current Contract
Liam O'Brien signed a $3,000,000 3-year contract with the Utah Hockey Club and General Manager Bill Armstrong on June 26, 2024 with an AAV of $1,000,000. This contract will start in 2024-25 and end after the 2026-27 season. In the first season of the contract the cap hit was equivalent to 1.14% of the salary cap.
Standard Contract (UFA) ( ) (0 ratings)
Liam O'Brien signed a $1,550,000 2-year contract with the Arizona Coyotes and General Manager Bill Armstrong on March 6, 2022 with an AAV of $775,000. This contract will start in 2022-23 and end after the 2023-24 season. In the first season of the contract the cap hit was equivalent to 0.94% of the salary cap.
Standard Contract (UFA) ( ) (0 ratings)
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022-23 | 28 | $775,000 | $775,000 | - | - | $750,000 | $750,000 | $750,000 | UFA | ||
| 2023-24 | 29 | $775,000 | $775,000 | - | - | $800,000 | $800,000 | $800,000 | UFA | ||
| Total | - | - | $1,550,000 | $1,550,000 | $1,550,000 |
Liam O'Brien signed a $750,000 1-year contract with the Arizona Coyotes and General Manager Bill Armstrong on July 28, 2021 with an AAV of $750,000. This contract will start in 2021-22 and end after the 2021-22 season. In the first season of the contract the cap hit was equivalent to 0.92% of the salary cap.
Standard Contract (UFA) ( ) (0 ratings)
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-22 | 27 | $750,000 | $750,000 | - | - | $750,000 | $750,000 | $250,000 | UFA-Grp6 | ||
| Total | - | - | $750,000 | $750,000 | $250,000 |
Liam O'Brien signed a $700,000 1-year contract with the Colorado Avalanche and General Manager Joe Sakic on March 30, 2021 with an AAV of $700,000. This contract will start in 2020-21 and end after the 2020-21 season. In the first season of the contract the cap hit was equivalent to 0.86% of the salary cap.
Standard Contract (UFA) ( ) (0 ratings)
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020-21 | 26 | $700,000 | $700,000 | - | - | $700,000 | $700,000 | $160,000 | UFA-Grp6 | ||
| Total | - | - | $700,000 | $700,000 | $160,000 |
Liam O'Brien signed a $700,000 1-year contract with the Washington Capitals and General Manager Brian MacLellan on June 10, 2019 with an AAV of $700,000. This contract will start in 2019-20 and end after the 2019-20 season. In the first season of the contract the cap hit was equivalent to 0.86% of the salary cap.
Standard Contract (RFA) ( ) (0 ratings)
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019-20 | 25 | $700,000 | $700,000 | - | - | $700,000 | $700,000 | $212,500 | RFA-arb | ||
| Total | - | - | $700,000 | $700,000 | $212,500 |
Liam O'Brien signed a $650,000 1-year contract with the Washington Capitals and General Manager Brian MacLellan on July 13, 2018 with an AAV of $650,000. This contract will start in 2018-19 and end after the 2018-19 season. In the first season of the contract the cap hit was equivalent to 0.82% of the salary cap.
Standard Contract (RFA) ( ) (0 ratings)
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018-19 | 24 | $650,000 | $650,000 | - | - | $650,000 | $650,000 | $150,000 | RFA-arb | ||
| Total | - | - | $650,000 | $650,000 | $150,000 |
Liam O'Brien signed a $650,000 1-year contract with the Washington Capitals and General Manager Brian MacLellan on July 14, 2017 with an AAV of $650,000. This contract will start in 2017-18 and end after the 2017-18 season. In the first season of the contract the cap hit was equivalent to 0.87% of the salary cap.
Standard Contract (RFA) ( ) (0 ratings)
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017-18 | 23 | $650,000 | $650,000 | - | - | $650,000 | $650,000 | $85,000 | RFA | ||
| Total | - | - | $650,000 | $650,000 | $85,000 |
Liam O'Brien signed a $1,865,000 3-year contract with the Washington Capitals and General Manager Brian MacLellan on October 5, 2014 with an AAV of $621,667. This contract will start in 2014-15 and end after the 2016-17 season. In the first season of the contract the cap hit was equivalent to 0.90% of the salary cap.
Entry Level Contract ( ) (0 ratings)
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2014-15 | 20 | $621,667 | $641,667 | $20,000 | $55,000 | $550,000 | $605,000 | $70,000 | ELC | ||
| 2015-16 | 21 | $621,667 | $641,667 | $20,000 | $55,000 | $575,000 | $630,000 | $70,000 | ELC | ||
| 2016-17 | 22 | $621,667 | $641,667 | $20,000 | $55,000 | $575,000 | $630,000 | $70,000 | ELC | ||
| Total | $60,000 | $165,000 | $1,700,000 | $1,865,000 | $210,000 |
Career Statistics
| Regular Season | Playoffs | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | +/- | PIM | Shots | Sh% | TOI/G | GP | G | A | Pts | +/- | PIM | Shots | Sh% | TOI/G |
| 2009-10 | SMHL | Notre Dame Hounds Midget AAA | 41 | 13 | 25 | 38 | 98 | |||||||||||||
| 2009-10 | SMAAAHL | Notre Dame Hounds U18 AAA | 13 | 4 | 3 | 7 | 30 | |||||||||||||
| 2010-11 | QMJHL | Rimouski Océanic | 61 | 2 | 8 | 10 | -8 | 45 | 5 | 6 | ||||||||||
| 2011-12 | QMJHL | Rimouski | 40 | 7 | 9 | 16 | +4 | 67 | 46 | 1,520.0 | ||||||||||
| 2011-12 | QMJHL | Rouyn-Noranda | 27 | 3 | 7 | 10 | -17 | 69 | 45 | 670.0 | 4 | 1 | 1 | -2 | 11 | 6 | 1,670.0 | |||
| 2012-13 | QMJHL | Rouyn-Noranda | 65 | 10 | 14 | 24 | -12 | 164 | 111 | 900.0 | 12 | 2 | 1 | 3 | +2 | 17 | 18 | 1,110.0 | ||
| 2013-14 | QMJHL | Rouyn-Noranda | 68 | 20 | 15 | 35 | -11 | 148 | 180 | 1,110.0 | 9 | 1 | 3 | 4 | -2 | 12 | 24 | 420.0 | ||
| 2014-15 | NHL | Washington Capitals | 13 | 1 | 1 | 2 | +4 | 23 | 16 | 6.2 | 7:33 | |||||||||
| 2014-15 | AHL | Hershey | 45 | 4 | 4 | 8 | -5 | 121 | 55 | 730.0 | 10 | 3 | 3 | 6 | +1 | 14 | 18 | 1,670.0 | ||
| 2015-16 | AHL | Hershey | 59 | 7 | 9 | 16 | +2 | 120 | 85 | 820.0 | 20 | 4 | 2 | 6 | -5 | 65 | 26 | 1,540.0 | ||
| 2016-17 | NHL | Washington Capitals | 1 | 0 | 0 | 0 | 0.0 | 6:08 | ||||||||||||
| 2016-17 | AHL | Hershey Bears | 64 | 10 | 20 | 30 | +5 | 117 | 6 | +2 | 13 | |||||||||
| 2017-18 | AHL | Hershey Bears | 69 | 17 | 9 | 26 | -8 | 79 | ||||||||||||
| 2017-18 | NHL | Washington Capitals | 3 | 0 | 0 | 0 | 5 | 1 | 0.0 | 6:55 | ||||||||||
| 2018-19 | AHL | Hershey Bears | 74 | 15 | 13 | 28 | -12 | 118 | 8 | 1 | 1 | 21 | ||||||||
| 2019-20 | AHL | Hershey Bears | 59 | 10 | 19 | 29 | +14 | 83 | ||||||||||||
| 2020-21 | NHL | Colorado Avalanche | 12 | 0 | 3 | 3 | +1 | 40 | 6 | 0.0 | 6:34 | |||||||||
| 2020-21 | AHL | Colorado Eagles | 12 | 4 | 4 | 8 | -1 | 15 | ||||||||||||
| 2021-22 | NHL | Arizona Coyotes | 39 | 2 | 1 | 3 | +1 | 106 | 36 | 5.6 | 9:29 | |||||||||
| 2022-23 | NHL | Arizona Coyotes | 56 | 3 | 8 | 11 | -5 | 114 | 39 | 7.7 | 11:26 | |||||||||
| 2023-24 | NHL | Arizona Coyotes | 75 | 5 | 9 | 14 | 153 | 72 | 6.9 | 9:44 | ||||||||||
| 2024-25 | NHL | Utah Hockey Club | 28 | 0 | 2 | 2 | +1 | 50 | 34 | 0.0 | 9:18 | |||||||||
| 2025-26 | NHL | Utah Mammoth | 8 | 1 | 0 | 1 | -5 | 12 | 12 | 8.3 | 9:24 | |||||||||
| NHL Career | 235 | 12 | 24 | 36 | -3 | 503 | 216 | 5.6 | 9:42 | |||||||||||