| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2016/2017 | Ekstraklasa | 10 | 139 | 1 | 0 | 0.65 | — |
| 2017/2018 | Ekstraklasa | 21 | 1204 | 4 | 2 | 0.45 | — |
| 2018/2019 | Ekstraklasa | 34 | 2717 | 2 | 6 | 0.26 | — |
| 2019/2020 | Premier League (Russia) | 22 | 1595 | 1 | 1 | 0.11 | 6.92 |
| 2020/2021 | Premier League (Russia) | 28 | 2329 | 1 | 5 | 0.23 | 7.47 |
| 2021/2022 | Premier League (Russia) | 27 | 2169 | 6 | 8 | 0.58 | 7.59 |
| 2022/2023 | Eredivisie | 29 | 1974 | 9 | 4 | 0.59 | 7.34 |
| 2023/2024 | Super Lig | 37 | 2909 | 10 | 11 | 0.65 | 7.68 |
| 2024/2025 | Super Lig | 35 | 2257 | 3 | 5 | 0.32 | 6.99 |
| 2025/2026 | Ligue 1 | 16 | 780 | 1 | 3 | 0.46 | 6.91 |
| 2025/2026 | Super Lig | 14 | 441 | 1 | 0 | 0.2 | 6.73 |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Figures computed from the GioScore season-stats database · as of 2026-07-31
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Gaziantep F.K. | 7 | 7 | 0 | 0 | 0 | 0 | 1 | 0 |
 Galatasaray | 6 | 2 | 2 | 2 | 1 | 0 | 1 | 0 |
 Beşiktaş | 6 | 3 | 0 | 3 | 1 | 1 | 0 | 0 |
 Samsunspor | 6 | 2 | 4 | 0 | 1 | 0 | 0 | 0 |
 Antalyaspor | 5 | 5 | 0 | 0 | 2 | 0 | 0 | 0 |
 Alanyaspor | 5 | 3 | 2 | 0 | 1 | 0 | 2 | 0 |
 Kayserispor | 5 | 4 | 1 | 0 | 1 | 1 | 0 | 0 |
 Trabzonspor | 5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 |
 Kasımpaşa | 5 | 4 | 1 | 0 | 0 | 0 | 0 | 0 |
 Konyaspor | 5 | 4 | 1 | 0 | 1 | 2 | 0 | 0 |
 İstanbul Başakşehir | 5 | 4 | 1 | 0 | 2 | 1 | 1 | 0 |
 Sivasspor | 4 | 3 | 1 | 0 | 1 | 1 | 0 | 0 |
 Ajax | 4 | 1 | 2 | 1 | 1 | 0 | 0 | 0 |
 Adana Demirspor | 4 | 3 | 1 | 0 | 0 | 1 | 1 | 0 |
 Rizespor | 4 | 4 | 0 | 0 | 1 | 0 | 0 | 0 |
 Hatayspor | 4 | 3 | 0 | 1 | 1 | 0 | 1 | 0 |
 Lazio | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 FC Twente | 3 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
 Go Ahead Eagles | 3 | 3 | 0 | 0 | 2 | 1 | 1 | 0 |
 LOSC Lille | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Finland | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 Netherlands | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 |
 Scotland | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
 Sweden | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Croatia | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
 Ukraine | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Albania | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Austria | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 France | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Wales | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Belgium | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Faroe Islands | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
 Moldova | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Lithuania | 2 | 2 | 0 | 0 | 1 | 1 | 0 | 0 |
 Saudi Arabia | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Mexico | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 New Zealand | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Bosnia and Herzegovina | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Slovenia | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Lithuania U21 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
The 2025/2026 Ligue 1 line for Sebastian Szymanski: 16 appearances (780 minutes), 1 goal, 3 assists — 0.46 goal involvements per 90. Per-match rating over the season: 6.91.
Season ratings peak at 7.68 in 2023/2024, Super Lig and bottom out at 6.73 in 2025/2026. Compared with his earlier career average, the last two rated seasons are down by 0.51.
