Isner may have found it difficult to shake off the "marathon man" tag but there are some other things that have stuck with him by his own choosing -- like his love for wrestling.

CNN: Enduring bromance of tennis' 'marathon men'

Riders on horseback compete against runners in the race, which began after a pub discussion over who would win a marathon between man and horse.

BBC: 7 questions on spring and summer traditions

My job was to man a booth at a Boston Marathon trade show at Faneuil Hall.

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