Jun 4 2023: Mark Pfeiffer places 41st at the Men 55-59 Masters Race at the South Mountain Cycle & Cafe in a group sprint

May 30 2023: Mark Pfeiffer places 55th at the Men Master 55+ Race at the 78th Tour of Somerville in a field sprint

May 21 2023: Mark Pfeiffer places 45th at the Men 55-59 Masters Race at the Kitchen Road Criterium in a field sprint

May 7 2023: Mark Pfeiffer places 37th at the Men 55-59 Masters Race at the Emrick Boulevard Criterium P/B QCW in a field sprint

May 7 2023: Mark Pfeiffer places 58th at the Men 45-49 Masters Race at the Emrick Boulevard Criterium P/B QCW in a group sprint

Aug 14 2022: Mark Pfeiffer places 29th at the Men 55-59 Masters Race at the Bigfoot Endurance for Parkinson's Research in a breakaway

Aug 7 2022: Mark Pfeiffer places 45th at the Men 45-49 Masters Race at the Piscitello Law Criterium in a group sprint

Jun 26 2022: Mark Pfeiffer places 44th at the Men 45+ Cat 1/2/3/4 Race at the Meridian Bank Great Valley Criterium in a field sprint

Jun 26 2022: Mark Pfeiffer places 31st at the Men 55-64 Cat 1/2/3/4 Race at the Meridian Bank Great Valley Criterium in a field sprint

Jun 5 2022: Mark Pfeiffer places 30th at the Men 55-59 Masters Race at the South Mountain Cycle & Cafe Criterium in a field sprint