I often think about Sarah Sellers, who made second place at the 2018 Boston Marathon. She was not in the top of the charts, not expected to be that strong a contender. The weather was awful that year, with strong winds and rain. And she said that as a full time nurse with kids, she had to train whenever she had time, being most of the time exhausted by her long days of work, training outside whatever the time or the weather. So running the marathon in bad weather after a bad night was just a usual running day for her, and that made a difference.