| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| — | Superliga (Romania) | 2 | 128 | 0 | 0 | 0 | 6.5 |
| 2017/2018 | 1. Division | 2 | 44 | 0 | 0 | — | — |
| 2018/2019 | 1. Division | 11 | 734 | 3 | 0 | 0.37 | — |
| 2019/2020 | 1. Division | 5 | 88 | 0 | 0 | — | — |
| 2020/2021 | 1. Division | 32 | 1695 | 7 | 0 | 0.37 | — |
| 2021/2022 | 1. Division | 15 | 999 | 2 | 1 | 0.27 | — |
| 2022 | Major League Soccer (United States) | 27 | 775 | 1 | 0 | 0.12 | 6.75 |
| 2023 | Major League Soccer (United States) | 21 | 713 | 0 | 1 | 0.13 | 6.78 |
| 2024 | Major League Soccer (United States) | 9 | 277 | 1 | 0 | 0.32 | 6.86 |
| 2024/2025 | Super Liga (Serbia) | 15 | 576 | 0 | 2 | 0.31 | 6.91 |
| 2024/2025 | Superliga (Romania) | 12 | 631 | 2 | 0 | 0.29 | 7.01 |
| 2025/2026 | Superliga (Romania) | 28 | 1763 | 1 | 2 | 0.15 | 6.77 |
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 2026-07-27
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Apollon | 11 | 3 | 2 | 6 | 1 | 0 | 1 | 0 |
 Anorthosis | 9 | 3 | 4 | 2 | 0 | 0 | 0 | 0 |
 AEL | 9 | 8 | 1 | 0 | 3 | 0 | 0 | 0 |
 AEK Larnaca | 9 | 6 | 2 | 1 | 2 | 0 | 0 | 0 |
 Doxa | 8 | 5 | 2 | 1 | 1 | 0 | 1 | 0 |
 Olympiakos | 7 | 4 | 1 | 2 | 1 | 0 | 0 | 0 |
 APOEL | 7 | 2 | 3 | 2 | 0 | 0 | 0 | 0 |
 Nea Salamis | 6 | 3 | 1 | 2 | 0 | 0 | 0 | 0 |
 Pafos FC | 5 | 1 | 3 | 1 | 2 | 0 | 1 | 0 |
 Enosis | 4 | 2 | 2 | 0 | 0 | 0 | 1 | 0 |
 Ethnikos Achna | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 Otelul | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
 Ermis | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 0 |
 FCSB | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Hermannstadt | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
 Granada | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Antwerp | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Dallas | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Olympiacos F.C. | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 PAOK | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Romania | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Estonia | 3 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
 Kosovo | 3 | 0 | 0 | 3 | 0 | 0 | 1 | 0 |
 Greece | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 Azerbaijan | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Bosnia and Herzegovina | 2 | 0 | 1 | 1 | 0 | 1 | 0 | 0 |
 Slovenia | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Slovakia | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 San Marino | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Lithuania | 2 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
 Croatia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Armenia | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Austria | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Bulgaria | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Malta | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Northern Ireland | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
 Russia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Scotland | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Luxembourg | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Montenegro | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Marinos Tzionis's 2025/2026 Superliga (Romania) season produced 1 goal and 2 assists across 28 appearances (1,763 minutes) — 0.15 goal involvements per 90. GioScore's computed rating for the season averages 6.77.
Season ratings peak at 7.01 in 2024/2025, Superliga (Romania) and bottom out at 6.75 in 2022.
