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Aug 26 2018: Mark Pfeiffer places 43rd at the Men 45+ Masters Race at the Cycledrome Criterium in a group sprint
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Jul 29 2018: Mark Pfeiffer places 54th at the Men Masters 45+ Race at the Emrick Boulevard Criterium in a field sprint
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Jun 9 2018: Mark Pfeiffer DNF'ed at the Men Masters 45+ Race at the Bob Riccio Tour de Pitman in a group sprint
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Jul 30 2017: Mark Pfeiffer places 45th at the Men 45-49 Masters Race at the Cycledrome Criterium in a group sprint
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Jul 23 2017: Mark Pfeiffer DNF'ed at the Men 45-49 Masters Race at the Emrick Boulevard Criterium in a group sprint
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Jul 9 2017: Mark Pfeiffer places 39th at the Men 45-49 Masters Race at the Curt's Cyclery Criterium in a field sprint
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Jul 2 2017: Mark Pfeiffer places 21st at the Men Master 45+ Race at the Course de Evesham-Marlton-Evesham in a field sprint
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May 29 2017: Mark Pfeiffer DNF'ed at the Men Masters 45+ Cat1/2/3 Race at the Tour of Somerville in a group sprint