Additionally, he has reached 13 career singles finals with a record of 7 wins and 6 losses all coming on the ITF Futures Tour.

His best results in the junior grand slams were a semifinal finish at the 2011 French Open in singles where he lost to Dominic Thiem and a semifinal finish at the 2011 Australian Open in doubles, partnering Joris De Loore where they lost to Jiří Veselý and Filip Horansky.

In July 2011, Delic made his ATP Tour debut when he was granted a wildcard entry into the main draw of the 2011 Croatian Open.

In 2014 he was given a wildcard into the main draw of the 2014 Zagreb Indoors where again he was defeated in the first round, this time by compatriot and fifth seed Marin Čilić 4–6, 4–6.

His only other win at the ATP Tour level was in a singles tie of Davis Cup play, where he represents his native Croatia.