USA: M15 Weston, FL - Singles - Main
1/16-finals Pacheco Mendez R. Lakoseljac C. 2:0 (6:1, 6:1) details 15.02.2023
USA: M15 Palm Coast, FL - Singles - Main
1/16-finals Lyeons J. Lakoseljac C. 2:0 (6:4, 6:2) details 08.02.2023
USA: M25 Columbus, OH 2 - Singles - Main
1/16-finals Anthrop J. Lakoseljac C. 2:0 (6:0, 6:3) details 16.11.2022
USA: M15 Winston-Salem, NC - Singles - Main
1/16-finals Horak O. Lakoseljac C. 2:0 (6:4, 6:4) details 09.11.2022
USA: M15 Ithaca, NY 2 - Singles - Main
1/16-finals Efstathiou M. Lakoseljac C. 2:0 (6:3, 6:3) details 02.11.2022
Canada: M25 Saint-Augustin - Singles - Main
1/16-finals Vasser O. Lakoseljac C. 2:1 (2:6, 7:65 , 6:3) details 26.10.2022
USA: M15 Ithaca, NY - Singles - Main
1/16-finals Lakoseljac C. Ravichander I. 0:2 (2:6, 65 :7) details 05.10.2022
USA: M15 Albuquerque, NM - Singles - Main
Quarter-finals O'Hoisin O. Lakoseljac C. 2:0 (6:1, 7:64 ) details 30.09.2022
1/8-finals Wang C. Lakoseljac C. 0:2 (3:6, 3:6) details 29.09.2022
1/16-finals Lakoseljac C. Huang H. 2:1 (63 :7, 6:1, 6:4) details 28.09.2022
Canada: Granby - Singles - Qualification
Semi-finals Lakoseljac C. Mayo A. 0:2 (4:6, 2:6) details 21.08.2022
USA: M15 Memphis, TN - Singles - Main
1/16-finals Mitsui S. Lakoseljac C. 2:0 (6:2, 6:4) details 18.08.2022
USA: M15 Pittsburgh, PA - Singles - Main
1/16-finals Catanzariti A.J. Lakoseljac C. 2:0 (7:63 , 6:3) details 13.07.2022
USA: M25 Wichita, KS - Singles - Main
1/8-finals Corwin F. Lakoseljac C. 2:0 (6:0, 6:4) details 16.06.2022
1/16-finals Lakoseljac C. Bangoura S. 2:0 (6:4, 7:64 ) details 15.06.2022
France: M15 Creteil - Singles - Main
1/16-finals Lakoseljac C. Papamalamis T. 0:2 (4:6, 3:6) details 08.03.2022
USA: M15 Tallahassee, FL - Singles - Main
1/8-finals Shane R. Lakoseljac C. 2:0 (6:2, 6:4) details 28.10.2021
1/16-finals Lakoseljac C. Boyer D. H. 2:1 (5:7, 7:66 , 7:66 ) details 27.10.2021
USA: M15 Naples, FL 2 - Singles - Main
1/16-finals Lakoseljac C. Baker B. 0:2 (4:6, 3:6) details 13.10.2021
USA: M15 East Lansing, MI - Singles - Main
1/16-finals Geerts M. Lakoseljac C. 2:0 (6:4, 6:4) details 20.11.2019
USA: Norman - Singles - Main
1/8-finals Lakoseljac C. Fenty A. 1:2 (1:6, 6:2, 64 :7) details 11.07.2019
1/16-finals Brown A. Lakoseljac C. 1:2 (7:64 , 3:6, 2:6) details 09.07.2019
Canada: Toronto - Singles - Qualification
Semi-finals Lakoseljac C. Donaldson J. 0:2 (1:6, 1:6) details 23.07.2016
USA: Pittsburgh - Singles - Main
1/16-finals Ho J. Lakoseljac C. 2:0 (6:3, 6:2) details 29.06.2016