Aug 10 2014: Dennis O'Brien places 10th at the 60+ Race at the Tokeneke Classic Road Race in a group sprint

Jun 21 2014: Dennis O'Brien places 2nd at the Men CAT 1-5 Masters 6569 40K Race at the Rhode Island Masters' Cycling Classic in a group sprint

Jun 21 2014: Dennis O'Brien places 3rd at the Men CAT 1-5 Masters 6569 20K Race at the Rhode Island Masters' Cycling Classic in a field sprint

Jun 21 2014: Dennis O'Brien places 5th at the Men Masters 65-69 10KTT Race at the Rhode Island Masters' Cycling Classic in a group sprint

May 24 2014: Dennis O'Brien places 17th at the Men master 60+ Race at the Cyclonauts Racers Criterium in a field sprint

Aug 18 2013: Dennis O'Brien places 3rd at the Men 65+ (Cat 1-5) Race at the Bob Beal Memorial Criterium- Masters' Regional Criterium Championships in a group sprint

Aug 11 2013: Dennis O'Brien places 9th at the Masters 60+(Cat 1-4) Race at the Tokeneke Classic Road Race in a group sprint

Aug 3 2013: Dennis O'Brien places 14th at the Masters 55+ (1-4) - Masters 65+ (1-4) Race at the 33rd Annual ENGVT Concord Criterium in a group sprint