Scottish kid trying to break run streak world record

11-year-old Seb Jellema will need to run daily for the next 52 years

3-legged running 12-hour world record broken by British pair

Gary Shaughnessy and Andy Tucker covered 77 km with their inside ankles attached with an exercise band

Californians crush Canadians’ wheelcair-pushing marathon world record

The U.S. duo sliced exactly 14 minutes off the record set in Quebec last October