| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2012/2013 | Serie A | 3 | 24 | 0 | 0 | — | — |
| 2012/2013 | Serie B | 20 | — | 0 | 0 | — | — |
| 2013/2014 | Serie A | 32 | 1808 | 0 | 0 | 0 | 6.63 |
| 2014/2015 | Serie A | 26 | 1333 | 1 | 2 | 0.2 | — |
| 2015/2016 | Serie A | 33 | 2486 | 1 | 5 | 0.22 | 7.02 |
| 2016/2017 | Serie A | 21 | 1328 | 1 | 1 | 0.14 | 6.83 |
| 2017/2018 | Serie A | 26 | 1956 | 0 | 2 | 0.09 | 6.75 |
| 2018/2019 | Serie A | 26 | 1851 | 4 | 4 | 0.39 | 6.88 |
| 2019/2020 | Serie A | 26 | 1735 | 2 | 6 | 0.41 | 6.8 |
| 2020/2021 | Serie A | 23 | 1228 | 0 | 1 | 0.07 | 6.86 |
| 2021/2022 | Serie A | 33 | 1932 | 2 | 2 | 0.19 | 6.93 |
| 2022/2023 | Serie A | 25 | 1105 | 1 | 0 | 0.08 | 6.8 |
| 2023/2024 | Serie A | 30 | 1894 | 2 | 5 | 0.33 | 7.1 |
| 2024/2025 | Serie A | 16 | 960 | 0 | 0 | 0 | 6.81 |
| 2025/2026 | Serie B | 17 | 744 | 1 | 1 | 0.24 | 6.84 |
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 2026-08-13
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Atalanta | 26 | 9 | 5 | 12 | 2 | 1 | 2 | 0 |
 Inter | 24 | 6 | 4 | 14 | 0 | 2 | 4 | 0 |
 Roma | 23 | 4 | 7 | 12 | 0 | 0 | 4 | 0 |
 Lazio | 23 | 2 | 4 | 17 | 0 | 0 | 4 | 0 |
 Torino | 23 | 8 | 6 | 9 | 0 | 1 | 3 | 0 |
 Juventus | 22 | 4 | 2 | 16 | 1 | 0 | 2 | 0 |
 AC Milan | 21 | 4 | 7 | 10 | 3 | 1 | 3 | 0 |
 Bologna | 21 | 9 | 2 | 10 | 0 | 0 | 0 | 0 |
 Genoa | 20 | 7 | 6 | 7 | 0 | 0 | 4 | 0 |
 Udinese | 20 | 10 | 7 | 3 | 1 | 1 | 0 | 0 |
 Napoli | 20 | 5 | 8 | 7 | 0 | 0 | 2 | 0 |
 Sampdoria | 19 | 12 | 2 | 5 | 2 | 2 | 4 | 0 |
 Empoli | 17 | 6 | 6 | 5 | 2 | 0 | 1 | 0 |
 Cagliari | 17 | 8 | 8 | 1 | 0 | 1 | 3 | 0 |
 Hellas Verona | 16 | 7 | 5 | 4 | 0 | 0 | 4 | 1 |
 Fiorentina | 14 | 4 | 5 | 5 | 1 | 1 | 0 | 0 |
 Parma | 14 | 4 | 3 | 7 | 0 | 0 | 4 | 0 |
 ChievoVerona | 12 | 3 | 4 | 5 | 0 | 0 | 1 | 0 |
 Sassuolo | 12 | 5 | 3 | 4 | 0 | 1 | 0 | 0 |
 Spezia | 7 | 4 | 2 | 1 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Canada | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Russia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Congo | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 São Tomé and Príncipe | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
In the 2025/2026 Serie B, Alfred Duncan made 17 appearances (744 minutes), with 1 goal and 1 assist — 0.24 goal involvements per 90. Per-match rating over the season: 6.84.
No season rated higher than 2023/2024 (7.1, Serie A); none lower than 2013/2014 (6.63).
