Apr 28 2013: Sierra Siebenlist DNF'ed at the Women Pro/Cat 1/2 Nrc Stage Race at the Joe Martin Stage Race - Stage 4

Apr 27 2013: Sierra Siebenlist places 38th at the Women Pro/Cat 1/2 Nrc Stage Race at the Joe Martin Stage Race - Stage 2 in a group sprint

Apr 26 2013: Sierra Siebenlist places 34th at the Women Pro/Cat 1/2 Nrc Stage Race at the Joe Martin Stage Race - Stage 2 in a group sprint

Apr 25 2013: Sierra Siebenlist places 41st at the Women Pro/Cat 1/2 Nrc Stage Race at the Joe Martin Stage Race - Stage 1