| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | Union Plaani | Suomen Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2024 | Lahden Reipas | Suomen Cup | 1 | 0 | 0 | 1 | 0 | – |
| 2023 | Lahti | Suomen Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2023 | Lahti | Liiga Cup | 5 | 1 | 0 | 0 | 0 | – |
| 2022 | Lahti | Suomen Cup | 4 | 0 | 0 | 0 | 0 | – |
| 2021 | Lahti | Suomen Cup | 2 | 0 | 0 | 2 | 1 | – |
| 2020 | AC Oulu | Suomen Cup | 2 | 2 | 0 | 0 | 0 | – |
| 2019 | AC Oulu | Suomen Cup | 3 | 2 | 0 | 0 | 0 | – |
| 2017/2018 | Lahti | Suomen Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2016/2017 | Lahti | Suomen Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2016 | VPS | Suomen Cup | 1 | 1 | 0 | 0 | 0 | – |
| 2016 | VPS | Liiga Cup | 5 | 1 | 0 | 0 | 0 | – |
| 2015 | VPS | Liiga Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2014 | Lahti | Suomen Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2013 | Lahti | Liiga Cup | 1 | 1 | 0 | 0 | 0 | – |
| Total | 32 | 8 | 0 | 3 | 1 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| 08 Nov 2025 | Lahden Reipas | Union Plaani | ||
| 04 Jan 2024 | Lahti | Lahden Reipas | Free agent | |
| 01 Jan 2021 | AC Oulu | Lahti | Free agent | |
| 01 Jan 2019 | Lahti | AC Oulu | Free agent | |
| 01 Jan 2017 | VPS | Lahti | Free agent | |
| 01 Jan 2015 | Lahti | VPS | Free agent | |
| - | Hameenlinna | Lahti | Free agent | |
| 01 Jan 2012 | Lahti | Hameenlinna | Free agent | |
| 01 Jan 2011 | Lahden Reipas | Lahti | Free agent |
L. Hertsi career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.