2010
He reached the quarterfinal at the Aircel Chennai Open in January, losing to Stanislas Wawrinka in the quarterfinals. At the 2010 Australian Open he was defeated by Denis Istomin in the second round after beating Kristof Vliegen in straight sets. In the second week of the Australian Open, he played at Heilbronn Challenger. He won the tournament after defeating Andrey Golubev in two sets. The following week he reached his first ATP World Tour final at the PBZ Zagreb Indoors, which he lost to Marin Čilić 4–6, 7–6(5), 3–6.
At the Dubai Tennis Championships in February, he defeated Sergiy Stakhovsky and Nikolay Davydenko to reach the third round, where he lost to Marcos Baghdatis, 6–7(5), 1–6. He lost the opener at the BNP Paribas Open in Indian Wells to Mardy Fish in three sets. He won the first round of the Sony Ericsson Open in Miami, before falling to Feliciano López in the second round. At his first clay court tournament of the year in Monte-Carlo, he beat Evgeny Korolev and Juan Mónaco en route to a third-round showdown against Rafael Nadal, which he lost, 0–6, 1–6. After this, he lost his next three opening matches.
At the French Open, he was again knocked out in the first round by Mardy Fish in five sets. He then suffered from an ankle injury. He made his next appearance in Wimbledon one month later, where he had to retire during his first-round match against Illya Marchenko. He then experienced two more first-round exits in Stuttgart and Hamburg in July.
In August, he reached the second round at the Legg Mason Tennis Classic, losing to Fernando Verdasco. Two weeks later he defeated Tommy Robredo at the ATP World Tour Masters 1000 in Cincinnati, before losing to Richard Gasquet in two sets. At the 2010 US Open, Berrer fell to countryman Andreas Beck in the first round, 6–7(3), 3–6, 1–6.
In September, he reached the second round of the Open de Moselle in Metz, after beating Rainer Schüttler in two sets. He lost to Philipp Kohlschreiber, 4–6, 2–6. As no. 51, he qualified for the China Open in Beijing. In the first round of the main draw he defeated world no. 7 Tomáš Berdych in three sets, before losing to Gilles Simon, 7–6, 4–6, 6–7, in over three hours. Berrer beat Guillermo García López, Pablo Cuevas, and Marcos Baghdatis en route to the semifinal in Vienna, where he lost to Austrian lucky loser Andreas Haider-Maurer.
Germany
