Mar 18 2018: Clifford Roberts places 34th at the Men SM Cat 4 Race at the Tucson Bicycle Classic - GC in a group sprint

Mar 18 2018: Clifford Roberts places 35th at the Men SM Cat 4 Race at the Tucson Bicycle Classic - Stage 3 in a group sprint

Mar 17 2018: Clifford Roberts places 19th at the Men SM Cat 4 Race at the Tucson Bicycle Classic - Stage 2 in a field sprint

Mar 16 2018: Clifford Roberts places 38th at the Men SM Cat 4 Race at the Tucson Bicycle Classic - Stage 1 in a group sprint