Belgian ultra runner Hilde Dosogne felt she had done all to take the world record to become the first woman to run a marathon every single day of the year.

Alessandro Slebir, a 23-year-old surfer from California, may have ridden his way into the history books by conquering what is ...

Now comes the filing of GPS data, photo and video evidence and independent witness reports she had to collect daily to meet the requirements of the Guinness World Records organization. If approved ...