| Date | Team | Transaction | |
|---|---|---|---|
| Nov 22, 2025 | Ottawa Senators | Assigned to AHL | |
| Nov 18, 2025 | Ottawa Senators | Recalled from AHL | |
| Oct 6, 2025 | Ottawa Senators | Cleared Waivers | |
| Oct 5, 2025 | Ottawa Senators | Placed on Waivers | |
| Jun 15, 2025 | Ottawa Senators | Signed 1 year @ $775K AAV starting in 2025-26 | |
| Jul 15, 2019 | Ottawa Senators | Signed to an entry level contract. |
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.
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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.
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| Season | Team(s) | GP | TOI | G/60 | A/60 | Pts/60 | xG/60 | GAE/60 | Sh% | xSh% | Sh%AE | %SA Rush | %SA Reb. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-22 | OTT | 16 | 220:44 | 0.00 | 1.09 | 1.09 | 0.08 | -0.08 | 0.00 | 3.67 | -3.67 | 0.00 | 0.00 |
| 2022-23 | OTT | 2 | 21:36 | 0.00 | 0.00 | 0.00 | 0.23 | -0.23 | 0.00 | 8.44 | -8.44 | 0.00 | 0.00 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-22 | OTT | 16 | 220:44 | 41.32 | 2.72 | 2.41 | 42.68 | 4.35 | 2.69 | 38.46 | 47.24 | -0.01 | -0.10 | 0.86 |
| 2022-23 | OTT | 2 | 21:36 | 41.67 | 0.00 | 1.99 | 44.44 | 5.56 | 2.61 | 0.00 | 43.34 | -1.67 | 0.68 | -22.12 |
| 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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| Percentile 0-25 | Percentile 25-50 | Percentile 50-75 | Percentile 75-100 |
| Season | Teammate | Team | TOI | GF/60 | GA/60 | GF% | xGF/60 | xGA/60 | xGF% | xGF Rel | xGA Rel | xGF% Rel |
|---|
| 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. |
Should The Senators Circle Back On AHL Defense Goal Scoring Leader Lassi Thomson? at Yahoo Sports NHL (Thu Feb 19, 2026)
Senators Recall Stephen Halliday, Lassi Thomson Ahead of 7-Game Trip at The Hockey Writers (Tue Nov 18, 2025)
Ottawa Senators Top 25 Under 25, #19: Lassi Thomson Returns to North America at Silver Seven Sens (Mon Aug 11, 2025)
Lassi Thomson signed a $775,000 1-year contract with the Ottawa Senators and General Manager Steve Staios on June 15, 2025 with an AAV of $775,000. This contract will start in 2025-26 and end after the 2025-26 season. In the first season of the contract the cap hit was equivalent to 0.81% of the salary cap.
Lassi Thomson signed a $2,775,000 3-year contract with the Ottawa Senators and General Manager Pierre Dorion on July 15, 2019 with an AAV of $925,000. This contract will start in 2019-20 and end after the 2023-24 season. In the first season of the contract the cap hit was equivalent to 1.13% of the salary cap.
| Season | Age* | Clause | Cap Hit | AAV | Perf. Bonus | Sign. Bonus | Salary | Compensation | Minors Salary | Status | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019-20 | 18 | $925,000 | $1,350,000 | - | $92,500 | - | $92,500 | - | ELC | ||
| 2020-21 | 19 | $894,167 | $1,319,167 | - | $92,500 | - | $92,500 | - | ELC | ||
| 2021-22 | 20 | $863,333 | $1,288,333 | $425,000 | $92,500 | $832,500 | $925,000 | $70,000 | ELC | ||
| 2022-23 | 21 | $863,333 | $1,288,333 | $425,000 | - | $832,500 | $832,500 | $70,000 | ELC | ||
| 2023-24 | 22 | $863,333 | $1,288,333 | $425,000 | - | $832,500 | $832,500 | $70,000 | ELC | ||
| Total | $1,275,000 | $277,500 | $2,497,500 | $2,775,000 | $210,000 |
| Regular Season | Playoffs | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | +/- | PIM | Shots | Sh% | TOI/G | GP | G | A | Pts | +/- | PIM | Shots | Sh% | TOI/G |
| 2014-15 | Jr. C SM-sarja | Ilves U16 | 19 | 2 | 2 | 4 | 6 | |||||||||||||
| 2014-15 | WSI U15 | Finland Selects U15 | 7 | 1 | 1 | 2 | ||||||||||||||
| 2015-16 | U16 SM-sarja | Ilves U16 | 24 | 6 | 12 | 18 | 18 | |||||||||||||
| 2016-17 | U18 SM-sarja | Ilves U18 | 39 | 9 | 11 | 20 | 24 | 4 | 2 | 2 | ||||||||||
| 2017-18 | U20 SM-liiga | Ilves U20 | 49 | 12 | 15 | 27 | -4 | 44 | ||||||||||||
| 2017-18 | WJC-18 | Finland U18 | 7 | 0 | 2 | 2 | +3 | 2 | ||||||||||||
| 2017-18 | U18 SM-sarja | Ilves U18 | 6 | 4 | 3 | 7 | 2 | |||||||||||||
| 2018-19 | WHL | Kelowna Rockets | 63 | 17 | 24 | 41 | 40 | |||||||||||||
| 2019-20 | Liiga | Ilves | 39 | 7 | 6 | 13 | 12 | |||||||||||||
| 2019-20 | WJC-20 | Finland U20 | 7 | 0 | 3 | 3 | +1 | 8 | ||||||||||||
| 2020-21 | AHL | Belleville Senators | 35 | 1 | 12 | 13 | -11 | 12 | ||||||||||||
| 2020-21 | Liiga | Ilves | 18 | 0 | 2 | 2 | 4 | |||||||||||||
| 2021-22 | NHL | Ottawa Senators | 16 | 0 | 5 | 5 | -8 | 2 | 18 | 0.0 | 17:15 | |||||||||
| 2021-22 | AHL | Belleville Senators | 44 | 10 | 16 | 26 | +6 | 54 | 2 | -3 | ||||||||||
| 2022-23 | AHL | Belleville Senators | 56 | 7 | 26 | 33 | -9 | 28 | ||||||||||||
| 2022-23 | NHL | Ottawa Senators | 2 | 0 | 0 | 0 | -2 | 4 | 1 | 0.0 | 10:54 | |||||||||
| 2023-24 | AHL | Belleville Senators | 67 | 6 | 15 | 21 | -14 | 56 | 5 | 2 | 2 | +1 | 2 | |||||||
| 2024-25 | EHT | Finland | 9 | 1 | 1 | 2 | -4 | 2 | ||||||||||||
| 2024-25 | SHL | Malmö Redhawks | 50 | 17 | 12 | 29 | +2 | 26 | 8 | 3 | 1 | 4 | -5 | 10 | ||||||
| 2025-26 | AHL | Belleville Senators | 53 | 14 | 11 | 25 | +4 | 54 | ||||||||||||
| NHL Career | 18 | 0 | 5 | 5 | -10 | 6 | 19 | 0.0 | 16:32 | |||||||||||