ATP Gstaad 07/21 08:30 26 [274] Dominic Thiem v Federico Delbonis [125] 7-6,6-3
ATP Gstaad 07/18 13:00 25 [125] Federico Delbonis v Mikael Ymer [91] 6-4,7-5
ATP Bastad 07/12 09:00 25 [65] Federico Coria v Federico Delbonis [84] 0-6,6-4,6-4
ATP Bastad 07/11 09:00 19 [84] Federico Delbonis v Pavel Kotov [122] 7-6,7-6
ATP Bastad 07/10 10:00 14 [84] Federico Delbonis v Juan Pablo Varillas [110] 6-2,4-6,7-6
Challenger Braunschweig 07/05 10:10 25 [155] Jan-Lennard Struff v Federico Delbonis [84] 6-2,7-6
Wimbledon 06/27 16:35 23 [104] Tim Van Rijthoven v Federico Delbonis [84] 7-6,6-1,6-2
ATP Mallorca 06/20 15:40 25 [85] Federico Delbonis v Antoine Bellier [303] 3-6,6-7
French Open 05/26 16:15 24 [7] Andrey Rublev v Federico Delbonis [65] 6-3,3-6,6-2,6-3
French Open 05/24 13:20 23 [69] Adrian Mannarino v Federico Delbonis [65] 1-6,6-7,2-6
ATP Geneva 05/18 13:05 26 [62] Federico Delbonis v Thanasi Kokkinakis [85] 6-1,5-7,5-7
ATP Geneva 05/16 12:10 25 [62] Federico Delbonis v Ricardas Berankis [101] 6-4,6-4
ATP Rome 05/09 18:05 24 [18] Pablo Carreno-Busta v Federico Delbonis [39] 6-3,6-2
ATP Madrid 05/01 13:30 24 [35] Daniel Evans v Federico Delbonis [36] 6-3,6-4
ATP Barcelona 04/20 09:00 25 [53] Marton Fucsovics v Federico Delbonis [34] 6-2,6-1
ATP Monte Carlo 04/13 16:40 25 [34] Federico Delbonis v Alexander Zverev [3] 1-6,5-7
ATP Monte Carlo 04/11 11:05 24 [105] Jaume Munar v Federico Delbonis [34] 4-6,6-3,4-6
ATP Marrakech 04/05 13:10 25 [35] Federico Delbonis v Joao Sousa [90] 2-6,7-5,3-6
ATP Miami 03/24 23:00 23 [36] Federico Delbonis v Andy Murray [85] 6-7,1-6
ATP Indian Wells 03/13 04:05 24 [34] Federico Delbonis v Nick Kyrgios [132] 2-6,2-6
ATP Santiago 02/23 22:00 26 [107] Thiago Monteiro v Federico Delbonis [37] 3-6,6-4,6-1
ATP Rio De Janeiro 02/19 03:30 26 [37] Federico Delbonis v Carlos Alcaraz [29] 4-6,6-7
ATP Rio De Janeiro 02/15 19:30 25 [112] Daniel Elahi Galan v Federico Delbonis [37] 6-3,3-6,2-6
ATP Buenos Aires 02/12 19:00 28 [8] Casper Ruud v Federico Delbonis [42] 6-3,6-3
ATP Buenos Aires 02/11 16:30 27 [40] Fabio Fognini v Federico Delbonis [42] 4-6,4-6
ATP Buenos Aires 02/10 18:50 26 [73] Pablo Andujar v Federico Delbonis [42] 4-6,4-6
ATP Buenos Aires 02/08 23:30 25 Juan Martin Del Potro v Federico Delbonis 1-6,3-6
ATP Cordoba 02/01 17:35 25 [105] Carlos Taberner v Federico Delbonis [41] 6-4,6-2
Australian Open 01/17 00:00 23 [42] Federico Delbonis v Pedro Martinez Portero [61] 6-7,6-3,4-6,2-6
ATP Sydney 01/11 02:10 25 [42] Federico Delbonis v Denis Kudla [109] 3-6,1-6

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.