Nicolas Almagro, born and living in Murcia, was a right-handed one-handed backhand tennis player who had clay as his favorite surface, on which he won all 13 of his titles.

A powerful and talented player, he was endowed with a very penetrating forehand, a stylistically appreciable classic backhand and often deep and precise, as well as an excellent serve, an unusual feature for a clay specialist. During his career, however, he was often discontinuous, alternating brilliant victories with searing defeats against players less gifted than him.

In the second part of 2007, his performance also improved on hard courts, which allowed him to reach the quarterfinals at the Masters 1000 in Cincinnati and the third round at the US Open, where he has the fourth round as his best result five years later.

Between 2008 and 2012 he had his best years, climbing up to number 9 in the ranking on May 2, 2011. His best results in Grand Slam tournaments are the quarterfinals at the French Open in 2008, 2010 and 2012 and the quarterfinals at the Australian Open in 2013. He won a total of 13 tournaments on the ATP circuit, losing 10 finals.