The Stranger at Mile 22

In 2018, marathon runner Katharina Steinruck hit the wall at mile 22 of the Frankfurt Marathon. Her legs cramped. Her vision blurred. She had been leading the women's field, but now she staggered toward the curb, ready to quit. That is when a man she had never met stepped out from the crowd — not a coach, not a teammate, just a stranger holding a cup of water and a piece of bread.…