Challenger Cleveland 01/30 16:55 19 Toby Alex Kodat v William Blumberg 6-3,6-4
Challenger Cleveland 01/29 17:35 14 Joshua Lapadat v William Blumberg 4-6,3-6
Challenger Fairfield 10/09 23:00 14 William Blumberg v Alafia Ayeni 6-2,3-6,5-7
ATP Newport 07/12 15:00 25 [48] Benjamin Bonzi v William Blumberg [109] 2-6,6-3,6-2
ATP Newport 07/11 15:00 19 Noah Rubin v William Blumberg 6-4,3-6,2-6
ATP Newport 07/10 16:50 14 [113] William Blumberg v Ramkumar Ramanathan [169] 3-6,7-5,6-4
Challenger Monterrey 03/08 18:00 25 [159] William Blumberg v Rinky Hijikata [337] 6-2,3-6,0-6
Challenger Monterrey 03/07 18:00 19 [402] Gilbert Klier Junior v William Blumberg [159] 4-6,4-6
Challenger Monterrey 03/06 20:10 14 [160] William Blumberg v Evan King [116] 6-7,7-6,6-1
Challenger Cleveland 02/04 16:25 27 [123] Yoshihito Nishioka v William Blumberg [178] 3-6,6-4,6-2
Challenger Cleveland 02/03 16:00 26 [178] William Blumberg v Emilio Gomez [142] Retired
Challenger Cleveland 02/01 22:10 25 [380] Roberto Quiroz v William Blumberg [179] 4-6,7-6,4-6
Challenger Cary 07/20 22:55 25 [284] William Blumberg v Mitchell Krueger [194] 6-4,3-6,6-7
ATP Newport 07/11 16:35 14 Alex Bolt v William Blumberg 7-6,7-6
ITF M15 Weston 07/01 21:55 25 William Blumberg v Strong Kirchheimer 3-6,3-6
Challenger Cary 11/10 15:30 25 Mikael Torpegaard v William Blumberg 3-6,6-3,6-4
Exo-Tennis USA 05/16 18:00 1 William Blumberg v Ruan Roelofse Cancelled
Exo-Tennis USA 05/16 15:00 1 William Blumberg v Christopher Eubanks Cancelled
Exo-Tennis USA 05/15 21:20 1 William Blumberg v Nathan Pasha Walkover
Exo-Tennis USA 05/15 16:35 1 William Blumberg v Donald Young 1-6,2-6
Exo-Tennis USA 05/14 18:50 1 Kevin King v William Blumberg 7-5,6-4
Exo-Tennis USA 05/14 15:25 1 Korey Lovett v William Blumberg 1-6,1-6
ITF M15 Tallahassee 12/05 16:50 26 William Blumberg v Guy Orly Iradukunda 6-2,6-7,4-6
ITF M15 Tallahassee 12/03 19:00 25 Reese Stalder v William Blumberg 2-6,4-6
Challenger Champaign 11/12 17:35 24 William Blumberg v Evan Song 4-6,5-7
Challenger Champaign 11/11 16:00 28 Chris Wettengel v William Blumberg 2-6,2-6
Challenger Dallas 02/04 18:35 24 [442] William Blumberg v Vincent Millot [326] 4-6,5-7
ITF USA F27 10/10 15:00 25 Jordi Arconada v William Blumberg Retired
Challenger Stockton 10/04 16:30 26 William Blumberg v Noah Rubin 1-6,6-4,4-6
Challenger Stockton 10/02 17:00 25 William Blumberg v JC Aragone 3-6,6-2,6-2