Tomás Asta-Buruaga

Unión Española

Born in Santiago, Asta-Buruaga was a Unión Española youth graduate. On 29 July 2012, aged just 15, he made his senior debut for the reserve team by playing the full 90 minutes in a 1–0 Segunda División Profesional de Chile away loss against Deportes Iberia. Asta-Buruaga made his first team debut on 23 July 2013, starting in a 3–0 Copa Chile home win against Palestino. A regular figure for the B-team in the following campaigns, he made his Primera División debut on 22 February 2014, starting in a 3–1 home defeat to Everton de Viña del Mar.

Deportes Antofagasta

For the 2016–17 season, Asta-Buruaga was loaned to fellow top-tier club Deportes Antofagasta. Rarely used, he scored his first goal 20 November 2016, netting his team's only in a 5–1 loss at Universidad Católica. Bought outright in mid-2017, Asta-Buruaga subsequently became a regular starter for the side.

Universidad Católica

Asta-Buruaga joined Universidad Católica in 2020 and left them at the end of the 2025 season. He made 100 appearances, scored three goals and made four assists in total. However, he renewed with them on 13 January 2026.

Everton (loan)

In 2024, he joined Everton de Viña del Mar on loan from Universidad Católica.

In 2014, Asta-Buruaga represented Chile U20 at the Four Nations International Tournament in Chile.

As of match played 7 March 2026

Unión Española

Supercopa de Chile: 2013 Universidad Católica Primera División de Chile: 2020, 2021 Supercopa de Chile: 2020, 2021