Jun 9 2013: David Guttenplan places 6th at the Men Pro/Cat 1 Ncc Stage Race at the Tulsa Tough - River Parks Riverview Criterium in a group sprint

Jun 8 2013: David Guttenplan places 11th at the Men Pro/Cat 1 Ncc Stage Race at the Tulsa Tough - George Kaiser Family Foundation Brady Village Criterium in a group sprint

Jun 7 2013: David Guttenplan DNF'ed at the Men Pro/Cat 1 Ncc Stage Race at the Tulsa Tough - McNellie's Group Blue Dome Criterium in a group sprint