Sep 6 2021: Julien Guarniere DNF'ed at the Men Pro/1/2 Race at the Green Mountain Stage Race - General Classification in a group sprint

Sep 5 2021: Julien Guarniere places 78th at the Men Pro/1 Race at the Green Mountain Stage Race - Stage 3 Road Race in a group sprint

Sep 4 2021: Julien Guarniere places 82nd at the Men Pro/1 Race at the Green Mountain Stage Race - Stage 2 Circuit Race in a group sprint

Sep 3 2021: Julien Guarniere places 74th at the Men Pro/1 Race at the Green Mountain Stage Race - Stage 1 Time Trial

Jun 27 2021: Julien Guarniere DNF'ed at the Men Senior 19-22 ProCat 12 Race at the 2021 USA Cycling Amateur Road National Championship in a group sprint

Jun 26 2021: Julien Guarniere DNF'ed at the Men Senior 19-22 ProCat 12 Race at the 2021 USA Cycling Amateur Road National Championship - RR in a group sprint

Apr 17 2021: Julien Guarniere places 37th at the Men Pro/Cat 1/2 Race at the 2021 Hincapie Spring Series in a group sprint