Stand with feet shoulder-width apart holding a kettlebell in one hand with a neutral grip. Slightly bend your knees and hinge at the hips with a flat back. Keeping your core braced, pull the kettlebell up toward your torso by driving your elbow back and squeezing your back muscles at the top. Slowly lower the kettlebell back down under control. Switch sides and repeat.
Log your kettlebell one arm row sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.