By CrossFit North Zone August 11, 2020 12-08-2020 FITNESS STRENGTH 4X5 Back squat WOD 500m row/ 400m ski 30 t2b 30 burpee box jump over 500m row/400m ski 25 t2b 25 burpee box jump over 500m row /400m ski 20 t2b 20 burpee box jump over Share: