| Temporada | Equipo | Competición | PJ | G | A | Nota | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | Nacional-AM | Amazonense | 2 | 1 | 0 | 0 | 0 | – |
| 2025 | Marica | Carioca | 4 | 0 | 0 | 0 | 0 | – |
| 2024 | Guayaquil City | Serie B | 2 | 2 | 0 | 0 | 0 | – |
| 2023 | EL Nacional | Liga Pro | 6 | 0 | 0 | 0 | 0 | 6.7 |
| 2022 | Delfin | Liga Pro | 11 | 0 | 0 | 1 | 0 | – |
| 2021 | LDU Quito | Liga Pro | 4 | 1 | 1 | 1 | 0 | – |
| 2020/2021 | Necaxa | Liga MX | 11 | 0 | 0 | 1 | 0 | 6.6 |
| 2019/2020 | Necaxa | Liga MX | 22 | 0 | 6 | 2 | 0 | 6.8 |
| 2018/2019 | Necaxa | Primera Division | 7 | 0 | 1 | 1 | 0 | – |
| 2018 | U. Catolica | Serie A | 28 | 3 | 0 | 2 | 1 | – |
| 2017/2018 | CSKA Sofia | Parva liga | 15 | 1 | 0 | 2 | 1 | – |
| 2016/2017 | CSKA Sofia | Parva liga | 14 | 1 | 0 | 1 | 0 | – |
| 2016/2017 | Sarmiento Junin | Primera Division | 12 | 0 | 1 | 4 | 0 | – |
| 2016 | Sarmiento Junin | Primera Division | 11 | 0 | 1 | 0 | 0 | – |
| 2015 | Godoy Cruz | Primera Division | 15 | 1 | 0 | 0 | 1 | – |
| 2014 | LDU Quito | Serie A | 8 | 0 | 0 | 2 | 0 | – |
| 2013 | LDU Quito | Serie A | 7 | 2 | 0 | 1 | 0 | – |
| Total | 179 | 12 | 10 | 18 | 3 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| 01 ene 2026 | Marica | Nacional-AM | ||
| 01 mar 2025 | Naranja Mekanica | Marica | Free agent | |
| 09 sept 2024 | Guayaquil City | Naranja Mekanica | Transfer | |
| - | EL Nacional | Guayaquil City | Free agent | |
| 07 may 2023 | Naranja Mekanica | EL Nacional | Transfer | |
| - | Delfin | Naranja Mekanica | Free agent | |
| - | Necaxa | Delfin | Transfer | |
| - | LDU Quito | Necaxa | Return from loan | |
| 07 ago 2021 | Necaxa | LDU Quito | Loan | |
| 01 oct 2019 | U. Catolica | Necaxa | Transfer | |
| - | CSKA Sofia | U. Catolica | Free agent | |
| 02 feb 2017 | Granada CF | CSKA Sofia | Transfer | |
| - | Sarmiento Junin | Granada CF | Return from loan | |
| 01 ene 2016 | Granada CF | Sarmiento Junin | Loan | |
| 10 may 2015 | Godoy Cruz | Granada CF | Return from loan | |
| - | Granada CF | Godoy Cruz | Loan | |
| 07 oct 2014 | LDU Quito | Granada CF | Transfer | |
| - | Toreros | LDU Quito | Transfer |
K. Mercado career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.