05 Dec 2021 to 12 Dec 2021ATP Challenger Maia, PortugalATP Challenger Maia, Portugal Men Singles 2021player-tournament-eliminated-textroundopponentsstatusscoreround_of_32Miguel DamasLost6 - 0 6 - 7 4 - 6
14 Nov 2021 to 21 Nov 2021ATP Challenger Pau, FranceATP Challenger Pau, France Men Singles 2021player-tournament-eliminated-textmore-detailsfewer-detailsroundopponentsstatusscoreround_of_32Holger RuneLost0 - 6 5 - 7
07 Nov 2021 to 14 Nov 2021ATP Challenger Roanne, FranceATP Challenger Roanne, France, Men Singles 2021player-tournament-eliminated-textmore-detailsfewer-detailsroundopponentsstatusscoreround_of_32Arthur CazauxLost6 - 2 6 - 2
29 Aug 2021 to 05 Sep 2021ATP Challenger Como, Italy2021 ATP Challenger Como, Italy Men Singlesplayer-tournament-eliminated-textmore-detailsfewer-detailsroundopponentsstatusscoreround_of_32Flavio CobolliLostretired
15 Aug 2021 to 22 Aug 2021ATP Challenger Luedenscheid, Germany2021 ATP Challenger Luedenscheid, Germany Men Singlesplayer-tournament-eliminated-textmore-detailsfewer-detailsroundopponentsstatusscoreround_of_16Daniel AltmaierLost6 - 7 3 - 6round_of_32Mischa ZverevWon3 - 6 1 - 6
08 Aug 2021 to 15 Aug 2021ATP Challenger San Marino, San Marino2021 ATP Challenger San Marino, San Marino Men Singlesplayer-tournament-eliminated-textmore-detailsfewer-detailsroundopponentsstatusscoreround_of_32Holger RuneLost3 - 6 4 - 6
14 Feb 2021 to 21 Feb 2021ATP Challenger Potchefstroom 2, South Africa2021 ATP Challenger Potchefstroom 2, South Africa Men Singlesplayer-tournament-eliminated-textmore-detailsfewer-detailsroundopponentsstatusscoreround_of_32Cem IlkelLost6 - 1 7 - 6
07 Feb 2021 to 14 Feb 2021ATP Challenger Potchefstroom, South Africa2021 ATP Challenger Potchefstroom 1, South Africa Men Singlesplayer-tournament-eliminated-textmore-detailsfewer-detailsroundopponentsstatusscoreround_of_16Cem IlkelLost2 - 6 3 - 6round_of_32Khololwam MontsiWon3 - 6 1 - 6