A marathon is 42.195 kilometres wherever it is run. The difference between a good time and a record is often the course, the weather and a pacemaker who knows when to stop.
Sports & Competition: Performance and the Numbers Behind It
Performance, data and the quiet engineering behind a result. Every story in this section is written for readers who want context rather than a press release. For official reference, see worldathletics.org. Browse the list below, or use the menu to jump to another section of homerzaragoza.my.id.
