Álvaro Guillén Meza

Álvaro Guillén Meza (born 2 January 2003) is an Ecuadorian professional tennis player. He has a career-high ATP singles ranking of No. 175 achieved on 9 June 2025 and a doubles ranking of No. 400 reached on 22 July 2024. He is currently the No. 2 singles player from Ecuador.

Guillén Meza plays mostly on the ATP Challenger Tour. He represents Ecuador at the Davis Cup, where he has a W/L record of 1–1.

Professional career

2023: Maiden Challenger title At 20 years old, Guillén Meza won his maiden Challenger title at the 2023 Lima Challenger. He became the youngest Ecuadorian champion since Giovanni Lapentti in 2003.

2024: Second Challenger title Guillén Meza won his second Challenger title at the 2024 Ibagué Open, defeating Facundo Mena in the final.

2025: ATP Tour debut In May, Guillén Meza claimed his third Challenger title at the 2025 Santos Brasil Tennis Cup, overcoming Matheus Pucinelli de Almeida in the final. As a result, he reached the top 200 at world No. 180 on 19 May 2025.

In July, Guillén Meza made his ATP Tour debut as a qualifier at the Croatia Open. He lost to Stan Wawrinka in the first round.

Performance timeline Singles

ATP Challenger Tour finals

Singles: 5 (3 titles, 2 runner-ups) LegendATP Challenger Tour (3–2)Finals by surfaceHard (0–0)Clay (3–2)

Doubles: 2 (2 runner-ups) LegendATP Challenger Tour (0–2)

ITF World Tennis Tour finals

Singles: 7 (4 titles, 3 runner-ups) LegendITF WTT (4–3)Finals by surfaceHard (0–0)Clay (4–3)

Doubles: 4 (1 title, 3 runner-ups) LegendITF WTT (1–3)Finals by surfaceHard (0–0)Clay (1–3)