Formed at Real Madrid, where he played only two Copa del Rey games for the first team, he spent most of his career at Alavés after signing in 2015, making 253 appearances.
Pacheco made his first start for the first team on 2 December 2014, in a 5–0 rout of UE Cornellà in the domestic cup where he featured the full 90 minutes.[7] Later that month, he was the unused third-choice goalkeeper as the Blancoswon the FIFA Club World Cup in Morocco.[8]
Alavés
On 7 August 2015, Pacheco signed a three-year deal with Deportivo Alavés of division two,[9] with Real Madrid having a buy-back clause.[10] He made his debut for the club on 22 August, starting in a 3–2 away win against SD Huesca.[11]
Pacheco was an undisputed starter for the Basques in his first season. He appeared in 40 league matches – missing one due to injury and being a substitute for Pau Torres in the last matchday – as they achieved promotion back to La Liga after ten years, as champions.[12][13]
Pacheco's maiden appearance in the Spanish top flight occurred on 21 August 2016, in a 1–1 away draw with Atlético Madrid.[14] He only missed two games in 38 during the campaign, and his team finished comfortably in mid-table;[15] in February he extended his contract to 2020.[16]
Pacheco was ever-present in 2017–18, receiving the highest total marks for the season from the local newspaper El Correo.[17] In December of the next season, his link was lengthened to 2023.[18]
On 10 August 2022, Pacheco signed a four-year contract with UD Almería in the top tier.[22] Thinking he would start due to his experience in the competition, he was however unable to beat competition from Fernando Martínez, and asked to leave in the following transfer window.[23]
Espanyol
On 31 January 2023, Pacheco joined Espanyol on a three-and-a-half-year deal.[24]
^Melero, Delfín (2 December 2014). "Con un par de jugones... ¡y con Jesé!" [With a pair of artists... and with Jesé!]. Marca (in Spanish). Retrieved 9 December 2014.
^Rodrigálvarez, Eduardo (29 May 2016). "El Alavés vuelve a Primera" [Alavés return to Primera]. El País (in Spanish). Retrieved 15 January 2017.
^ ab"La temporada, en números" [The season, in numbers] (in Spanish). Deportivo Alavés. 7 June 2016. Retrieved 15 January 2017.
^Melero, Delfín (22 August 2016). "Al Atleti le sobra descuento" [Atleti do not want to hear about injury time]. Marca (in Spanish). Retrieved 29 April 2018.
^García, Nico (9 January 2023). "Pacheco y el Almería tensan la cuerda" [Pacheco and Almería tighten the thumbscrews]. Diario AS (in Spanish). Retrieved 1 February 2023.
^"Pacheco, última incorporació" [Pacheco, last addition] (in Catalan). RCD Espanyol. 31 January 2023. Retrieved 1 February 2023.