Guillaume Rufin

Guillaume Rufin (born 26 May 1990) is a French former professional tennis player. His highest singles ranking is World No. 81, achieved in September 2013.

2009
He received a wildcard into the 2009 French Open, his ATP-tier debut. In the first round, one day before his 19th birthday, he beat Eduardo Schwank, 6–1, 6–3, 6–3.

Rufin achieved another landmark in his young career on 25 October 2009, when he won the Florianópolis Challenger title in Brazil, beating Pere Riba in the final, 6–4, 3–6, 6–3.

2010
He reached the quarterfinals of the 2010 Open 13 in Marseille. In the first round, Rufin defeated lucky loser Laurent Recouderc, 7–5, 4–6, 7–6. He followed this up by defeating Yannick Mertens of Belgium, 6–3, 2–6, 6–2. He eventually fell to World No. 92 Mischa Zverev, 7–5, 6–7, 6–3.

Rufin received a wildcard into the 2010 US Open and defeated Leonardo Mayer in four sets before losing to Paul-Henri Mathieu in the second round.

2012
2012 began well for Rufin, as he reached second ever ATP Quarter-Final in Montpellier. He defeated Canadian Vasek Pospisil 6–4 7–6 and Spaniard Feliciano López 7–6 6–3, before falling to compatriot Gilles Simon 6–7 7–6 2–6.

A strong end to the season on the ATP Challenger Tour saw Rufin enter the top 100 for the first time. Rufin's four week sojourn on the clay courts of South America comprised a win in Villa Allende, two finals in Quito and Buenos Aires and a Semin-Final in San Juan.

2013
Rufin reached the Quarter-Final of the ATP Tour event in Viña del Mar, defeating Spain's Rubén Ramírez Hidalgo 6–3 6–4 and Argentina's Juan Mónaco 7–6 6–4. He had to withdraw before his scheduled match with Carlos Berlocq.

2015: Retirement
Rufin retired in spring 2015 due to persistent injuries.

Singles
Current until US Open.

Doubles
Current as far as the 2014 US Open (tennis).