Challenger Noumea 01/05 03:25 28 [80] Federico Delbonis v Mikael Ymer [255] 2-6,4-6
Challenger Noumea 01/04 07:40 27 [80] Federico Delbonis v Gregoire Barrere [163] 7-6,6-4
Challenger Noumea 01/03 02:35 26 [80] Federico Delbonis v Elliot Benchetrit [275] 6-3,6-2
Challenger Noumea 01/02 08:25 25 [80] Federico Delbonis v Sem Verbeek [221] 6-3,7-5
Challenger Guayaquil 10/30 15:00 25 Gastao Elias v Federico Delbonis Cancelled
Challenger Lima 10/26 01:25 27 Thiago Monteiro v Federico Delbonis Walkover
Challenger Lima 10/24 23:05 26 [344] Emilio Gomez v Federico Delbonis [84] 2-6,1-6
Challenger Lima 10/24 01:05 25 [184] Pedja Krstin v Federico Delbonis [84] 2-6,2-6
Challenger Santo Domingo 10/13 22:25 29 [121] Christian Garin v Federico Delbonis [81] 6-4,5-7,6-4
Challenger Santo Domingo 10/13 01:15 28 [186] Pedja Krstin v Federico Delbonis [81] 0-6,3-6
Challenger Santo Domingo 10/11 22:00 27 [115] Paolo Lorenzi v Federico Delbonis [81] 5-7,5-7
Challenger Santo Domingo 10/11 16:35 26 [148] Rogerio D. Silva v Federico Delbonis [81] 4-6,1-6
Challenger Santo Domingo 10/10 00:20 25 [323] Victor E Burgos v Federico Delbonis [81] 5-7,3-6
Challenger Campinas 10/07 16:00 29 [141] Christian Garin v Federico Delbonis [91] 6-3,6-4
Challenger Campinas 10/06 16:00 28 [115] Thiago Monteiro v Federico Delbonis [91] 0-6,7-6,2-6
Challenger Campinas 10/05 20:35 27 [140] Carlos Berlocq v Federico Delbonis [91] 2-6,0-6
Challenger Campinas 10/04 22:15 26 [148] Rogerio Dutra Silva v Federico Delbonis [91] 2-6,1-6
Challenger Campinas 10/02 17:45 25 [365] Alexander Zhurbin v Federico Delbonis [91] 4-6,0-6
Challenger Biella 09/23 13:30 29 [250] Stefano Napolitano v Federico Delbonis [101] 4-6,3-6
Challenger Biella 09/22 11:15 28 [117] Thiago Monteiro v Federico Delbonis [101] 2-6,3-6
Challenger Biella 09/21 09:00 27 [280] Facundo Arguello v Federico Delbonis [101] 2-6,4-6
Challenger Biella 09/20 10:50 26 [168] Salvatore Caruso v Federico Delbonis [101] 3-6,5-7
Challenger Biella 09/18 12:00 25 [451] Jan Satral v Federico Delbonis [101] 6-3,3-6,1-6
Challenger Szczecin 09/11 09:00 25 Federico Delbonis v Andrea Arnaboldi Cancelled
Challenger Genova 09/08 16:30 28 [111] Federico Delbonis v Lorenzo Sonego [121] 5-7,3-6
Challenger Genova 09/07 12:00 27 [141] Stefano Travaglia v Federico Delbonis [111] 3-6,6-3,6-7
Challenger Genova 09/06 11:20 26 Giovanni Fonio v Federico Delbonis 1-6,3-6
Challenger Genova 09/04 08:30 25 [150] Rogerio Dutra Silva v Federico Delbonis [111] 6-4,4-6,3-6
US Open 08/28 18:05 23 [13] Diego Schwartzman v Federico Delbonis [111] 6-2,7-6,6-2
ATP Kitzbuhel 07/30 11:40 25 [95] Denis Istomin v Federico Delbonis [107] 7-6,6-2

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.