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Lassi Thomson
| Position | Right Defense | Current Team | Ottawa Senators |
| Shoots | Right | Current Contract | 1 years |
| Height | 6'0" | Expires | 2025-26 |
| Weight (lbs) | 192 | Expiry Age (Jun 30) | 25 |
| Age | 24 (Sep 24, 2000) | Expiry Status | RFA-arb |
| Drafted | 2019, Round 1, Overall 19 (OTT) |
| Date | Team | Transaction | |
|---|---|---|---|
| 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. |
Status History Coming Soon
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. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-22 | OTT | 16 | 220:44 | 0.00 | 1.09 | 1.09 | 0.08 | -0.08 | 0.00 | 3.75 | -3.75 | 0.00 | 0.00 |
| 2022-23 | OTT | 2 | 21:36 | 0.00 | 0.00 | 0.00 | 0.24 | -0.24 | 0.00 | 8.70 | -8.70 | 0.00 | 0.00 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-22 | OTT | 16 | 220:44 | 41.32 | 2.72 | 2.41 | 42.68 | 4.35 | 2.63 | 38.46 | 47.82 | 0.13 | -0.04 | 1.72 |
| 2022-23 | OTT | 2 | 21:36 | 41.67 | 0.00 | 1.93 | 44.44 | 5.56 | 2.65 | 0.00 | 42.10 | -1.69 | 0.75 | -23.52 |
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% |
| 2021-22 | 16 | 21.4 | 0.4 | 4.1 | 4.5 | 92.5 | 63.9 | 76.5 | 23.5 | 0.0 | 41.0 | 18.3 | 40.7 |
| 2022-23 | 2 | 19.5 | 0.0 | 9.5 | 9.4 | 75.9 | 67.7 | 0.0 | 100.0 | 0.0 | 43.0 | 16.0 | 41.0 | 2023-24 | - | - | - | - | - | - | - | - | - | - | - | - | 2024-25 | - | - | - | - | - | - | - | - | - | - | - | - |
Legend
| Percentile 0-25 | Percentile 25-50 | Percentile 50-75 | Percentile 75-100 |
5v5 Defense Pairs
Season
| Season | Teammate | Team | TOI | GF/60 | GA/60 | GF% | xGF/60 | xGA/60 | xGF% | xGF Rel | xGA Rel | xGF% Rel |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-22 | Chabot, T | OTT | 117:01 | 3.08 | 3.08 | 50.00 | 2.83 | 2.58 | 52.30 | 0.60 | -0.10 | 6.87 |
| 2021-22 | Heatherington, D | OTT | 25:22 | 0.00 | 7.10 | 0.00 | 1.87 | 1.97 | 48.65 | -0.29 | -0.18 | -1.45 |
| 2021-22 | Mete, V | OTT | 21:18 | 2.82 | 5.63 | 33.33 | 2.83 | 3.59 | 44.11 | 0.45 | 0.73 | -1.32 |
| 2021-22 | Holden, N | OTT | 20:28 | 0.00 | 2.93 | 0.00 | 1.74 | 2.40 | 42.06 | -0.66 | -0.64 | -2.03 |
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
-
Ottawa Senators 2025-26 Prospect Pyramid at The Hockey Writers (Fri Sep 12, 2025)
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Senators’ 2025-26 Training Camp Storylines to Watch at The Hockey Writers (Wed Aug 27, 2025)
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Ottawa Senators Top 25 Under 25, #15: Maxence Guenette at Silver Seven Sens (Tue Aug 19, 2025)
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Ottawa Senators Top 25 Under 25, #19: Lassi Thomson Returns to North America at Silver Seven Sens (Mon Aug 11, 2025)
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Ottawa Senators Defense Depth Chart: 2025 Offseason at The Hockey Writers (Wed Aug 6, 2025)
-
Staios Appears on TSN 1200 at Sens Chirp (Wed Jun 25, 2025)
Current Contract
Standard Contract (RFA) ( ) (0 ratings)
Signed: June 15, 2025
Team: Ottawa Senators
GM: -
Exp. Status: RFA-arb
Cap %: 0.81
Entry Level Contract ( ) (0 ratings)
| 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 |
Signed: July 15, 2019
Team: Ottawa Senators
GM: -
Exp. Status: RFA
Note: This entry level contract slid two seasons as player did not meet the games played threshold to start the contract.
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 |
| 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 | WJC-18 | Finland U18 | 7 | 0 | 2 | 2 | +3 | 2 | ||||||||||||
| 2017-18 | U18 SM-sarja | Ilves U18 | 6 | 4 | 3 | 7 | 2 | |||||||||||||
| 2017-18 | U20 SM-sarja | Ilves U20 | 49 | 12 | 15 | 27 | -4 | 44 | ||||||||||||
| 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 | Liiga | Ilves | 18 | 0 | 2 | 2 | 4 | |||||||||||||
| 2020-21 | AHL | Belleville Senators | 35 | 1 | 12 | 13 | -11 | 12 | ||||||||||||
| 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 | NHL | Ottawa Senators | 2 | 0 | 0 | 0 | -2 | 4 | 1 | 0.0 | 10:54 | |||||||||
| 2022-23 | AHL | Belleville Senators | 56 | 7 | 26 | 33 | -9 | 28 | ||||||||||||
| 2023-24 | AHL | Belleville Senators | 67 | 6 | 15 | 21 | -14 | 56 | 5 | 2 | 2 | +1 | 2 | |||||||
| 2024-25 | SHL | Malmö Redhawks | 50 | 17 | 12 | 29 | +2 | 26 | 8 | 3 | 1 | 4 | -5 | 10 | ||||||
| 2024-25 | SHL | Malmö Redhawks | 50 | 17 | 12 | 29 | +2 | 26 | 1 | 2 | ||||||||||
| 2024-25 | EHT | Finland | 9 | 1 | 1 | 2 | -4 | 2 | ||||||||||||
| NHL Career | 18 | 0 | 5 | 5 | -10 | 6 | 19 | 0.0 | 16:32 | |||||||||||