How Shalane Flanagan went from almost retiring to being a top contender in the 2018 Boston Marathon Posted Apr 6, 2018 Shalane Flanagan says she felt “hungover” after her historic New York City Marathon finish in November. Once her “happiness hangover” subsided, Flanagan faced a sobering question: Was it time to call it quits? Despite contemplating retirement prior to running in NYC, the Marblehead native expressed a potential change of heart in the days following her win. (Boston.com)