Here we go! This is the big one of the Killer K-Rep series! And what level are you up for? Impressive (50 burpees total), Epic (75 burpees) or the mind-numbing Ludicrous (100 burpees)? WHAT? Killer K-Reps #4 5x 1k @ Your 10k Race Pace w/ 10, 15 or 20 burpees immediately before each rep 90[…]