Feb 18 2018: Maurice Petrehn places 9th at the Men Cat 5 Race at the Valley of the Sun Stage Race - GC in a group sprint

Feb 18 2018: Maurice Petrehn places 14th at the Men Cat 5 Race at the Valley of the Sun Stage Race - Stage 3 in a group sprint

Feb 17 2018: Maurice Petrehn places 11th at the Men Cat 5 Race at the Valley of the Sun Stage Race - Stage 2 in a group sprint

Feb 16 2018: Maurice Petrehn places 8th at the Men Cat 5 Race at the Valley of the Sun Stage Race - Stage 1 in a group sprint