| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2010/2011 | National | 25 | — | 0 | 0 | — | — |
| 2011/2012 | National | 25 | — | 3 | 0 | — | — |
| 2012/2013 | Ligue 2 | 34 | 2957 | 4 | 0 | 0.12 | — |
| 2013/2014 | Ligue 2 | 30 | 2326 | 7 | 0 | 0.27 | — |
| 2014/2015 | Ligue 2 | 30 | 2191 | 2 | 0 | 0.08 | 7.34 |
| 2015/2016 | Ligue 2 | 35 | 2878 | 0 | 0 | 0 | — |
| 2016/2017 | Ligue 1 | 15 | 882 | 0 | 0 | 0 | 6.86 |
| 2016/2017 | Ligue 2 | 16 | 1372 | 1 | 1 | 0.13 | 7.12 |
| 2017/2018 | Ligue 2 | 23 | 1341 | 0 | 0 | 0 | 6.84 |
| 2018/2019 | Ligue 2 | 32 | 2810 | 0 | 5 | 0.16 | 7.35 |
| 2019/2020 | Ligue 2 | 23 | 2013 | 0 | 0 | 0 | 7.02 |
| 2020/2021 | Ligue 2 | 35 | 3097 | 1 | 4 | 0.15 | 7.41 |
| 2021/2022 | Ligue 1 | 32 | 2752 | 0 | 1 | 0.03 | 7.17 |
| 2022/2023 | Ligue 1 | 31 | 2607 | 4 | 3 | 0.24 | 7.16 |
| 2023/2024 | Ligue 1 | 28 | 2274 | 0 | 0 | 0 | 6.99 |
| 2024/2025 | Ligue 2 | 24 | 1813 | 1 | 0 | 0.05 | 7.12 |
| 2025/2026 | Ligue 2 | 27 | 1647 | 0 | 3 | 0.16 | 6.83 |
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 2026-08-17
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Lorient | 9 | 3 | 1 | 5 | 0 | 0 | 4 | 0 |
 Reims | 8 | 3 | 1 | 4 | 0 | 1 | 1 | 0 |
 Metz | 8 | 1 | 4 | 3 | 0 | 1 | 2 | 0 |
 Olympique Lyonnais | 7 | 4 | 1 | 2 | 0 | 0 | 1 | 0 |
 Lens | 7 | 0 | 2 | 5 | 0 | 0 | 3 | 0 |
 Nice | 7 | 3 | 1 | 3 | 0 | 0 | 1 | 0 |
 Montpellier | 7 | 1 | 4 | 2 | 0 | 0 | 4 | 0 |
 Paris Saint Germain | 7 | 1 | 2 | 4 | 1 | 0 | 1 | 0 |
 LOSC Lille | 7 | 1 | 2 | 4 | 0 | 0 | 1 | 0 |
 Brest | 6 | 1 | 2 | 3 | 0 | 0 | 2 | 1 |
 Strasbourg | 6 | 0 | 3 | 3 | 0 | 0 | 0 | 0 |
 Laval | 6 | 4 | 2 | 0 | 1 | 0 | 1 | 0 |
 Auxerre | 6 | 2 | 2 | 2 | 0 | 0 | 3 | 0 |
 Troyes | 6 | 3 | 1 | 2 | 2 | 0 | 1 | 0 |
 Nantes | 5 | 1 | 1 | 3 | 0 | 0 | 1 | 1 |
 Rennes | 5 | 3 | 0 | 2 | 1 | 0 | 0 | 0 |
 Caen | 5 | 2 | 1 | 2 | 0 | 0 | 0 | 0 |
 Nancy | 5 | 1 | 1 | 3 | 0 | 1 | 2 | 1 |
 Olympique Marseille | 4 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
 Saint-Étienne | 4 | 0 | 1 | 3 | 0 | 0 | 1 | 0 |
In 2025/2026, Johan Gastien's Ligue 2 contribution was creative only — 3 assists in 27 appearances, no goals (1,647 minutes) — 0.16 goal involvements per 90. Per-match rating over the season: 6.83.
2020/2021 stands as his highest-rated season (7.41, Ligue 2), with 2025/2026 the weakest (6.83). The recent curve points down: 0.15 below his prior career average across the last two rated seasons.
