| Personal information | |||
|---|---|---|---|
| Date of birth | 23 March 1995 | ||
| Place of birth | Córdoba, Argentina | ||
| Height | 1.77 m (5 ft 9+1⁄2 in) [1] | ||
| Position | Winger [2] | ||
| Team information | |||
Current team | Platense | ||
| Number | 7 | ||
| Youth career | |||
| 2002–2014 | Instituto | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2014–2018 | Instituto | 70 | (6) |
| 2018–2024 | Vélez Sarsfield | 14 | (0) |
| 2019–2020 | → Defensa y Justicia (loan) | 10 | (2) |
| 2020–2021 | → Deportes Iquique (loan) | 12 | (2) |
| 2021–2023 | → Sarmiento (loan) | 56 | (5) |
| 2024 | Instituto | 9 | (0) |
| 2024– | Platense | 57 | (8) |
| * Club domestic league appearances and goals as of 17:10, 19 November 2025 (UTC) | |||
Guido Mainero (born 23 March 1995) is an Argentine professional footballer who plays as a winger for Platense. [1]
Mainero joined Instituto's academy in 2002. [3] He was moved into their first-team for the 2014 Primera B Nacional campaign. [1] [4] He made his professional debut on 5 November 2014 during a win over Boca Unidos, which was the first of thirty-two appearances in his opening three seasons. [1] [5] In his fourth, he netted four goals throughout the year; notably the first against Villa Dálmine in April 2017. [1] In January 2018, Mainero completed a transfer to Argentine Primera División side Vélez Sarsfield. [1] [6] His first appearance in the top-flight came in a 2–0 defeat to Chacarita Juniors on 5 February. [1]
In July 2019, Mainero completed a season-long loan move to Defensa y Justicia. [7] He made twelve appearances in all competitions whilst scoring two goals; in the league versus Talleres and Rosario Central. [1] His 100th career appearance arrived on 3 March 2020 in the Copa Libertadores versus Santos; in what was his last match for Defensa due to the COVID-19 pandemic. [1] He featured for Vélez on 31 October versus Huracán, before departing on loan in November to Chilean team Deportes Iquique. [1] After debuting against Cobresal on 23 November, Mainero scored on 8 December versus Unión Española. [1] After returning from loan in June 2021, he was loaned out once again, this time to Sarmiento until the end of 2022. [8]
| Club | Season | League | Cup | League Cup | Continental | Other | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | ||
| Instituto | 2014 | Primera B Nacional | 5 | 0 | 0 | 0 | — | — | 0 | 0 | 5 | 0 | ||
| 2015 | 14 | 0 | 1 | 0 | — | — | 0 | 0 | 15 | 0 | ||||
| 2016 | 11 | 0 | 1 | 0 | — | — | 0 | 0 | 12 | 0 | ||||
| 2016–17 | 28 | 4 | 0 | 0 | — | — | 0 | 0 | 28 | 4 | ||||
| 2017–18 | 12 | 2 | 2 | 0 | — | — | 0 | 0 | 14 | 2 | ||||
| Total | 70 | 6 | 4 | 0 | — | — | 0 | 0 | 74 | 6 | ||||
| Vélez Sarsfield | 2017–18 | Argentine Primera División | 8 | 0 | 0 | 0 | — | — | 0 | 0 | 8 | 0 | ||
| 2018–19 | 5 | 0 | 1 | 0 | 0 | 0 | — | 0 | 0 | 6 | 0 | |||
| 2019–20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| 2020–21 [nb 1] | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | ||
| Total | 14 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | ||
| Defensa y Justicia (loan) | 2019–20 | Argentine Primera División | 10 | 2 | 1 | 0 | — | 1 [a] | 0 | 0 | 0 | 12 | 2 | |
| Deportes Iquique (loan) | 2020 | Chilean Primera División | 4 | 1 | 0 | 0 | — | — | 0 | 0 | 4 | 1 | ||
| Career total | 98 | 9 | 6 | 0 | — | 1 | 0 | 0 | 0 | 105 | 9 | |||
Platense