Career
Delbonis earned five Challenger and Futures titles from the time he turned professional in 2009 until 2013. He qualified at the 2013 International German Open and beat Tommy Robredo, Dmitry Tursunov and Fernando Verdasco. He beat the Spaniard in a tight three-setter to set up a meeting in the semifinals with Roger Federer.
He finished runner-up to Fabio Fognini, squandering a set and 4–1 lead and failing to convert three match points.
This performance raised his ranking into the top 100 for the first time in his career. Singles titles (7)
Singles runner-up (4)
Current through the Indian Wells.
Current till 2015 United States Open.