Aleksandr Sorokin Runs New 100-Mile and 12-Hour World Records

On Saturday, April 24, 2021, Lithuania’s Aleksandr Sorokin set new world records with a time of 11:14:56 for the 100-mile world record (that’s 160.934 kilometers) and a distance of 105.825 miles/170.309 kilometers for the 12-hour world record, at the Centurion Running Track 100 Mile in England. In the process, he also set a world record for 150 kilometers (93.206 miles) in 10:27:48 and 50-mile Lithuanian record in 5:32:01. These are all-surface records, and are subject to confirmation. For more, you can read our exclusive interview with Aleksandr Sorokin, the new 100-mile and 12-hour world record holder.

Sorokin’s marks best the previous records of 11:19:18 for 100 miles and 104.88 miles/168.7928 kilometers for 12 hours, which were both set by Zach Bitter in 2019 at the Six Days in the Dome race in Wisconsin, USA.

[Editor’s Note: If you’re visiting iRunFar for the first time, you might want to check out our Newcomer’s Guide to Ultramarathon Training and Ultimate Guide to Ultramarathon Training to see what getting ready to run an ultra is like. For an inside look at what setting a 100-mile record looks like, read Zach Bitter’s race report when he first set the US 100-mile and 12-hour world records in 2013.]

Aleksandr Sorokin - 100 mile and 12 hour world records - Centurion Running Track 100 Mile

Aleksandr Sorokin running a 100-mile world record of 11:14:56 at the 2021 Centurion Running Track 100 Mile. He continued on from this moment to set a 12-hour world record as well. Image is a screenshot from Centurion Running’s livestream.

Sorokin has a long history with road and track ultrarunning, including a 10th place at the 2015 IAU 100k World Championships, a win of the 2017 Spartathlon, and a win at the 2019 IAU 24-Hour World Championships.

The race was a 15-person, elite-invite-only event which took place at the Julie Rose Stadium in Ashford, England. The Centurion Running race organization offered live timing, a video livestream, and social-media updates across their platforms.

According to the live timing, Sorokin split 3:25:38 for 50 kilometers (6:37 per mile/4:07 per kilometer overall pace), 5:32:01 for 50 miles (6:38 per mile/4:07 per kilometer overall pace), 6:54:25 for 100 kilometers (6:40 per mile/4:08 per kilometer overall pace) on his way to the 100-mile and 12-hour world records. His 100-mile overall pace was 6:45 minutes per mile (4:12 per kilometer) and his 12-hour overall pace was 6:48 minutes per mile (4:14 per kilometer).

Here’s Centurion Running’s video profile of Sorokin and his performance:

And here are a few more social-media updates about Sorokin’s effort by Centurion Running:

Meghan Hicks

is the Managing Editor of iRunFar and the author of 'Where the Road Ends: A Guide to Trail Running.' The converted road runner finished her first trail ultramarathon in 2006 and loves using running to visit the world's wildest places.