April 9, 2013 Mackenzie Dern: “I’m training how to escape from the 50/50 guard” Mackenzie Dern failed to take the gold in the last edition of the IBJJF Pan in late March, in Irvine. In the absolute, the petite… Read More→
March 18, 2013 Mackenzie Dern ready to face teammates: “It’s my job” Jiu-Jitsu world champion from blue to brown belt, Mackenzie Dern, 19, is taming her anxiety for her second IBJJF tournament as a black belt. The star… Read More→