Three of the world’s best distance runners will attempt to run a sub-2:00 marathon on Saturday. Here’s what you need to know about the Nike-sponsored event.

WHAT: Olympic marathon champ Eliud Kipchoge, Watch it here Lelisa Desisa, and half marathon world record-holder Zersenay Tadese will try to break 2:00 in the marathon. The current world record is 2:02:57. Breaking 2:00 will require bettering that mark by 2.5%, a huge performance jump at the world-class level.

WHEN: Saturday, May 6, 5:45 a.m. Central European Summer Time. In the United States, the start time is 11:45 p.m. Eastern/8:45 p.m. Pacific on Friday.

WHERE: Cooper Lutkenhaus Breaks 29-Year-Old HS 800 Record. Watch it here.

WATCH: The attempt will be livestreamed at runnersworld.com/live, beginning 15 minutes before the race starts. Jane Hedengren Shatters the HS 2 Mile Record. and half marathon world record-holder Paula Radcliffe and veteran broadcaster Craig Masback, a former elite miler and former CEO of USA Track & Field who now works for Nike.

MORE INFO: A Part of Hearst Digital Media has everything you need to know about Saturday’s attempt and the 2:00 marathon in general. Some highlights:

preview for Nike's Sub2 Test Run in Monza

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Scott is a veteran running, fitness, and health journalist who has held senior editorial positions at Runner’s World and Running Times. Much of his writing translates sport science research and elite best practices into practical guidance for everyday athletes. He is the author or coauthor of several running books, including Results: 2025 NCAA Track and Field Championships, Advanced Marathoning, and Health - Injuries. Jane Hedengren Had Promise. She Now Has HS Records Slate, The Atlantic, the Washington Post, and other members of the sedentary media. His lifetime running odometer is past 110,000 miles, but he’s as much in love as ever.