ATP Basel 10/28 13:00 27 [37] Gilles Muller v Federico Delbonis [48] 6-7,6-4,7-6
ATP Basel 10/26 18:45 26 [48] Federico Delbonis v Ricardas Berankis [91] 6-7,7-6,6-3
ATP Basel 10/24 11:00 25 [47] Andrey Kuznetsov v Federico Delbonis [48] 4-6,4-6
ATP Antwerp 10/17 11:20 25 [47] Federico Delbonis v Andreas Seppi [100] 6-7,7-5,3-6
ATP Shanghai 10/10 06:25 24 [48] Kyle Edmund v Federico Delbonis [46] 6-3,5-7,6-4
ATP Tokyo 10/04 05:30 25 [21] Ivo Karlovic v Federico Delbonis [47] 7-6,6-7,7-6
Others 09/27 05:00 25 [73] Dusan Lajovic v Federico Delbonis [41] 1-6,6-3,6-4
US Open 2016 08/31 22:30 24 Federico Delbonis v Roberto Bautista-Agut 7-5,2-6,3-6,2-6
US Open 08/29 18:30 23 Brian Baker v Federico Delbonis 6-3,7-6,4-6,2-6,2-6
ATP Cincinnati 08/16 18:50 24 Steve Johnson v Federico Delbonis 6-4,7-5
Davis Cup 07/17 10:30 1 Fabio Fognini v Federico Delbonis 4-6,5-7,6-3,5-7
Davis Cup 07/15 13:30 - Andreas Seppi v Federico Delbonis 6-7,6-3,3-6,6-7
Wimbledon 06/29 11:15 23 Federico Delbonis v Fabio Fognini 4-6,6-1,7-6,2-6,3-6
French Open 05/24 11:35 23 Pablo Carreno Busta v Federico Delbonis 7-6,6-7,6-4,6-4
ATP Geneva 05/19 11:15 27 Federico Delbonis v Marin Cilic 4-6,3-6
ATP Geneva 05/18 12:45 26 Federico Delbonis v Thomaz Bellucci 6-3,6-0
ATP Geneva 05/16 13:20 25 Federico Delbonis v Janko Tipsarevic 6-1,7-6
ATP Monte Carlo 04/12 13:35 24 Fernando Verdasco v Federico Delbonis 6-0,6-3
ATP Marrakech 04/10 13:00 29 Borna Coric v Federico Delbonis 2-6,4-6
ATP Marrakech 04/09 12:40 28 Federico Delbonis v Albert Montanes 6-4,6-3
ATP Marrakech 04/08 15:00 27 Pablo Carreno Busta v Federico Delbonis 5-7,2-6
ATP Marrakech 04/07 17:25 26 Thiemo De Bakker v Federico Delbonis 4-6,4-6
ATP Miami 03/26 18:40 24 Grigor Dimitrov v Federico Delbonis 7-6,4-6,6-4
ATP Miami 03/24 23:15 23 Elias Ymer v Federico Delbonis 1-6,6-4,3-6
ATP Buenos Aires 02/10 17:00 26 Federico Delbonis v Nicolas Almagro 3-6,6-4,4-6
Davis Cup 09/20 13:30 1 Steve Darcis v Federico Delbonis 6-4,2-6,7-5,7-6
Davis Cup 09/18 12:00 1 David Goffin v Federico Delbonis 7-5,7-6,6-3
US Open 09/01 15:00 23 Federico Delbonis v Ivo Karlovic 3-6,5-7,5-7
ATP Kitzbuhel 08/06 10:00 27 Federico Delbonis v Paul-Henri Mathieu 3-6,6-0,3-6
ATP Kitzbuhel 08/05 09:30 26 Robin Haase v Federico Delbonis 6-4,2-6,2-6

Wikipedia - Federico Delbonis

Federico Delbonis (Spanish pronunciation: [feðeˈɾiko ðelˈβonis]; born 5 October 1990) is an Argentine former professional tennis player. He achieved a career-high ATP singles ranking of No. 33 on 9 May 2016. He also reached a career-high doubles ranking of No. 110 on 22 July 2019.

Delbonis was known for his unorthodox serve, an exaggerated trophy serve in which he would raise his racquet, toss the ball unusually high and follow through.